MANUFACTURING HEAT TREAT

EB and VAR Furnaces for American Company

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Earl Good
Managing Director at Retech Systems, LLC
Source: Retech

A furnace manufacturer located in Buffalo, NY will provide both an Electron Beam (EB) and Vacuum Arc Remelt (VAR) furnace to an American company. This combination should allow them to expand their production.

Retech, a SECO/WARWICK Group division, will provide these two furnaces to a longstanding repeat business partner. VAR technology operates similarly to the far older metallurgical process of stick welding, except with a much larger welding rod of several tons, and it is shielded from oxidation by a vacuum chamber instead of a flux. EB technology operates similarly to the cathode ray tube in old television sets, except instead of energizing a phosphorescent screen in a sealed vacuum tube, the electron beam heats a melt pool in a large vacuum chamber.

“[This partner] has purchased Retech furnaces previously," comments Earl Good, managing director at Retech. "The VAR furnace is a follow-up to other similar systems we sold them before, as is the EB."


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Record Setting Titanium Load Processing Achieved

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Source: Solar
Robert (Bob) Hill,
President at
Solar Atmospheres of Western PA
Source: Solar Atmospheres

A western PA heat treater recently degassed 175,000 pounds of 6AI-4V titanium in their 48-foot-long vacuum furnace. This is the largest and heaviest single load of titanium ever processed in the company's history.

Solar Atmospheres of Western PA vacuum degassed the load consisting of 154 sheets of titanium 40” x 240”. Their president, Bob Hill, states, “The future of the global aerospace titanium market is very promising with the many opportunities in the commercial and military aircraft markets!”


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Future Energy Flexibility

op-ed

Today's original content piece comes to us from Dr.-Ing. Joachim G. Wünning, president of WS Wärmeprozesstechnik GmbH. Thinking of how dependent countries can be on one another for energy supply, he reminds us that an energy crises in one area can have far reaching effects on the rest of the world.

What, if anything, can be done? Wünning looks to the heat treating industry to show that there are efforts to source energy from chemical carriers and to use fuel flexible furnaces. He says, "Our beautiful earth is worth preserving for future generations."

Read on to find challenges and encouragements of how to source and use energy in the years to come.


Dr.-Ing. Joachim G. Wünning, President at WS Wärmeprozesstechnik GmbH
Source: the author

Europe and especially Germany recently learned the hard way what it means to largely depend on one major energy supplier. After Russia shut off a few pipelines and destroyed two others, it was not clear if industry and households would get through the winter without major shutoffs and constraints. Now spring is here, and gas storage Is still at reasonable levels, due to a mild winter. We can temporarily relax but should be aware that the next winter is coming. Energy issues will be one of the great challenges for the next decades.

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In addition to missing energy supply from Russia, reduced availability of French nuclear power stations is another issue. This decreased availability is a result of repair, maintenance, and reduced cooling capabilities due to low river water levels. Already scarce, natural gas was used to export electricity to electric power dependent France. Last year in Germany, shares of electricity produced in coal fired power stations were up despite the clearly expressed will from a government which includes the green party.

Some of these problems do not yet apply for the United States because there are enough resources to guarantee a stable energy supply. However unforeseen things can happen like if and when certain future markets will ask for fossil free products (eg green steel).

The transition of our energy systems, to limit climate change mainly caused by the combustion of fossil fuels, will remain a major task for the coming decades. The worldwide transition to renewable energy, provided largely by solar and wind, will require a major effort.

In the heat treating industry, direct usage of electricity and chemically stored electric energy in the form of hydrogen or ammonia will be the primary sources for heating industrial furnaces.  While direct use of electricity might look like the obvious choice for the future, it might not be the case for all applications.

If you convert a furnace to electric heating, you have to rely on payable electric energy even when there is no sunshine or wind blowing. You may need to switch your furnace off when electricity is scarce. If you want a steady weather independent production, using a chemical energy carrier has advantages. In many furnaces, combustion systems are or will be available for the usage of either natural gas, hydrogen, or ammonia cracking gases.

If you invest in a fuel flexible furnace today, you can benefit from using natural gas which is far less expensive than electricity in most regions. If electricity becomes more abundant at certain times, you can generate your own hydrogen; and you will have the choice between using (natural or green) gas from the grid or your self-generated hydrogen without investing in a new furnace. This energy flexibility will present a big competitive advantage and will enable you to offer green steel when the market is asking for it.

In the future, the success of societies and industries will depend on their ability to flexibly adjust to changing conditions, energy being one of them. Our beautiful earth is worth preserving for future generations.

About the Author:

Wünning is the president, owner, and CEO of WS Thermprocess Technic Gmbh [WS Wärmeprozesstechnik GmbH] in Germany and WS Thermal Process Technology, Inc., in Elyria, Ohio.

Contact Joe at  j.g.wuenning@flox.com


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Heat Treat Radio #94: A North American Alliance — 3 Managing Directors Speak

In a special Heat Treat Radio episode, three managing directors based in SECO/WARWICK Group’s North American companies speak with Doug Glenn, host of this podcast and Heat Treat Today founder and publisher, about the working synergy amongst heat treat and metallurgical market efforts. Watch, listen, and learn about how Earl Good, managing director at Retech; Marcus Lord, managing director at SECO/WARWICK; and Peter Zawistowski, managing director at SECO/VACUUM, lead the North American market with their heat treat solutions.

Below, you can watch the video, listen to the podcast by clicking on the audio play button, or read an edited transcript.


 


The following transcript has been edited for your reading enjoyment.

Meet the Managing Directors (01:20)

I want to start with Peter Zawistowski, managing director at SECO/VACUUM Technologies, one of the newer companies of the SECO/WARWICK GROUP.  Then, we have Marcus Lord, managing director at SECO/WARWICK Corporation. Both of those  companies are currently located in Meadville, western Pennsylvania. We also have Earl Good, managing director at Retech Systems, LLC, located in the Buffalo, NY, area.

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Earl Good
Managing Director at Retech Systems, LLC
Source: Retech

Earl Good: I’ve been with Retech 6 years in April. Time has flown by fast. There have been, certainly, some interesting developments with Retech over the years. We relocated the business from Ukiah, California to Buffalo, New York. We originally had an office on Main Street in Williamsville in 2018. We found a new facility here that allows us to do manufacturing and assembly as well as have office space. We have about 40,000 feet for manufacturing and assembly, 10,000 square feet of office space. We are actually looking for additional space because of the growth and development we’ve experienced over the last few years.

When I came into Retech, there were some issues and some challenges that the company was facing. We’ve overcome those, and we’ve certainly moved in a good direction.

Prior to Retech, I was with Metso Minerals. I worked with Metso Minerals for about 13 years. I was moved through various positions there. My last position, for the last 7 years, was the vice president of ETO  (“engineer to order” group). I was responsible for four different divisions on a global basis and increased that business from about 150 million euros to about 250 million euros a year. It became the second most profitable division within Metso.

This opportunity came along, and it was a different challenge. That’s what piqued my interest here.

Marcus Lord
Managing Director at SECO/WARWICK Corporation
Source: SECO/WARWICK

Marcus Lord: I’ve been with SECO for 9 months now. I came on board at the end of June (2022), basically looking at reestablishing the SECO/WARWICK manufacturing footprint in Meadville. That’s a “work in process” right now, rebuilding the team. We have a considerable amount of folks that are looking at retirement and trying to pass on some of that legacy knowledge to new people to spur additional business growth.

Prior to SECO, I worked for Carpenter Technology Corporation for 3 years, metal manufacturing for specialty alloys. Prior to that, I did two greenfields, one for Oerlikon Metco and one for Wyman-Gordon PCC. Both of those were powder atomization materials, so a lot of “end use” more so than manufacturing of the equipment, which gives me a good understanding of what people want from equipment.

Peter Zawistowski
Managing Director at SECO/VACUUM Technologies
Source: SECO/VACUUM

Peter Zawistowski: I’m in Meadville, PA. It’s hard to say how long I have been with SECO/WARWICK. I’ve been there 20 years, officially, but to be honest, it’s been since as long as I can remember that I’ve been around vacuum furnaces. I was basically born inside a SECO/VACUUM furnace, so that’s how long I’ve been with the company.

I’ve gone through several different positions: service engineer, engineering, sales, and currently, managing SECO/VACUUM here in the U.S. We are responsible for our vacuum furnaces for North America.

Doug Glenn: For those who don’t know: the global headquarters for the SECO Group is in Poland. Peter actually comes from there. You agreed to relocate your family, and you’ve been in the States now for how long?

Peter Zawistowski: For quite some time; I think it’s 10 ½ years or 11.

Doug Glenn: Peter is the link back to Poland which we will talk briefly about.

Markets and Products (07:00)

Can you give a snapshot of the markets you serve and the products you supply?

Peter Zawistowski: 50% of our products are single chamber furnaces, standard from toolbar up to 25 bars of gas quench furnaces multigraphite.

The next would be vacuum oil quench furnaces in which we’ve developed a new design, I believe, 15 or 20 years ago. This is where, I think, we are leading the market. I believe the competition is 5 to 10 years behind us in this product.

We have a lot of new developments or new products like pit LPC, like 4D Quench, which is like a single piece quench. We are always looking for some custom projects. We like those; we are not afraid of those and we can do them.

Doug Glenn: In a nutshell, SECO/VACUUM Technologies is dealing primarily with vacuum heat treat furnaces and all things around that including any type of specials, customs, etc. That’s where your strengths are. Marcus, how about SECO/WARWICK Corp.?

Marcus Lord: SECO/WARWICK Corporation has a pretty big portfolio of equipment. Right now, I know a major view is on CAB lines. We’re seeing a lot of inquiries on the continuous or controlled aluminum brazing process as well as aluminum processing equipment for annealing large coils of aluminum or sheet and foil-type aluminum. Then, back to some of the roots as atmospheric-type furnaces, so roller hearths, mesh belt and things of those sort. Those are, basically, customized to the customer’s preference, so we have a huge catalog. Lately, we’ve sold some actual aluminum melting-type furnaces, so large tilt melting furnaces.

Doug Glenn: Earl, let’s go to you.

Earl Good: We supply vacuum melting equipment — melting of metals and alloys that have a high melting temperature. Our typical industry markets are aerospace, medical, defense, and energy storage. Our primary furnace types are the electron beam furnace, a PAM (plasma arc melting) furnace, and a VIM  (vacuum induction melting in a bar). We also have powder atomization technology and our melt spinner technology.

R&D in melting is growing for us, because we have a couple different furnaces we can operate. We have a lot of customers who don’t have the need for an excessive amount of material. They don’t want to purchase a furnace, so they come to us asking us to melt a certain amount over the course of a month or a year.

We have a broad base of technologies that we can offer the market, which is good, because some of the aerospace work can be cyclical in nature; but the other furnaces and other options that we have make up for that.

We work with mostly titanium, nickel, and various alloys associated with aluminum and nickel.

Technological Niches (11:25)

Doug Glenn: Is there a specific technology that you feel is really your company’s strong suit? Something you really feel comfortable doing?

Earl Good: I’m going to highlight two different technologies: I think our PAM technology, or plasma melting technology, is the best on the market. We have more installations than anybody out there. All of our furnaces have, basically, satisfied their performance requirements.

PAM Furnace
Source: Retech Systems, LLC

Another area I’d like to highlight is our powder technology. We’ve been a little bit behind some of our competitors in the market, but we’ve really developed some good things that are going to provide opportunities for us in the market. We have a number of customers coming to us to look at those opportunities now. I think those are probably the two most unique and best that we have to offer.

Peter Zawistowski: Our single chamber vacuum furnaces are one of the best in the world, currently. We also have some new products. We are trying to get to the market our 4D Quench furnace. It is a special system to vacuum carburize and then single piece quench. This is the unit we are implementing in the U.S. We are getting good references, and we are getting great results.

4D Quench Furnace
Source: SECO/VACUUM

We are also focused on LPC, in general. All of our furnaces are equipped with LPC which, I think, the industry is moving to vacuum carburizing. That’s the big focus right now with SECO/VACUUM.

Doug Glenn: People are saying in many areas in heat treat, we ought to be focusing much more on quench than heating. Anybody can heat the thing up. The real key is, can you quench it? Especially when you’re talking about surface hardening and things of that sort.

Peter Zawistowski: Exactly. And in 4D Quench, this is where we can control the distortion to the level close to gas quenching; that’s the key to success.

Marcus Lord: I would say that our CAB (controlled atmosphere brazing) lines are probably the best in the world. We have a lot of competitors that we’re seeing pop up out of Asia, but I believe that we still hold the market share for that type of equipment. Like many of our other pieces of equipment, we are able to customize based upon what the customer really is needing to achieve.

I would say that with the big push to reduce carbon footprint of these manufacturers, SECO still has the technology for their bayonet electric heating processes. We’re not held up by somebody else supplying us with that type of product; we can build that in-house and supply a very efficient furnace when it comes to electric heating.

New Technologies (15:20)

Doug Glenn: Does SECO/WARWICK have anything to offer in the aluminum market?

Marcus Lord: In Poland, we are starting to offer the vortex 1 and 2.0, which is being developed. Those are options we are going to introduce along with predictive maintenance programs that have been developed out of Poland.

Doug Glenn: I want next ask about new technologies, things that either are currently commercialized, or soon to be, that you feel good about. Peter, why don’t we start with you? What do you think as far as vacuum technologies?

Peter Zawistowski: We have quite a few new technologies, but I think I will tell you more about LPC. As I said, all of our products are equipped with vacuum carburizing. I think that this is where the industry is going right now with the current trend of limiting the carbon footprint and sustainability. I know that in the U.S., it’s maybe not that common right now, but you are aware that most or all of the big European companies will have to report carbon footprint starting in 2024.

If any of the U.S. companies would like to do business with Europe, like with German automotive industrial airbuses of the world, you’ll have to do the same. To do that, you have to limit your carbon footprint.

"To do that [facilitate business in Europe], you have to limit your carbon footprint."
Source: Unsplash.com/Matthias Heyde
In carburizing, you must switch technology. Right now, the most common carburizing technology or equipment is Integral Quench (IQ) furnaces, and you must do something with it. There is a need. It will happen that there will be a switch to low pressure carburizing; this is where we can help.Earl Good: A lot of our furnaces are customized. Through the R&D trials and toll melting we do, we are able to develop new technologies. There are two areas that I want to highlight.We put some time and effort into developing a small-scale atomizer that is more like a lab-type atomizer. Ours is a little bit more robust than our competitors’ units, and it has more capabilities. For example, you can melt different materials on it. We’re very eager to get that out into the market and make our first sale.

The second is our plasma gas atomizer. We do receive a lot of interest in this product right now. It’s different from what’s out there. Much of the market today, as far as powder and atomization, is batch process; the yields are not great. We believe that the plasma gas atomizer will increase yields. It allows ongoing melting which is going to provide a lot of options to customers who have the need for a more robust process, as far as their powder production.

We’re really excited about both of those and getting those out.

Doug Glenn: Is development of those products driven by the AM market 3D printing?

Earl Good: Yes, but you have universities and others who want to do things on a smaller scale, on the trial basis so as to not invest a significant amount of money. They want to see that the technology is going to work or see the products they’re developing. There is a real need for that, and I think there’s a need for something more robust than what’s on the market.

Marcus Lord: We have new technologies on aluminum processing.

The Vortex 2.0 is a new technology. I believe three Vortex 2.0 systems have been sold and are not yet fully commissioned. This will give us an upper hand on how we go about heating our materials on an efficiency standpoint, especially when we’re looking at the carbon footprint and how we are going about processing our materials.

Other than that, we have some technologies based on a customer preference, technologies that may not be a staple or standard on all our equipment.

Collaboration (22:53)

"Is it helpful that you’ve got the three separate companies working together?"
Source: Unsplash.com/krakenimages

Doug Glenn: There are very few thermal processing technology companies that have the breadth of capabilities from everything from atomizing, arc melting, heat treating, vacuum heat treating, and air atmosphere heat treating. How do you cooperate to synergize these technologies? Do you find it beneficial, and/or is it helpful that you’ve got the three separate companies working together?

Earl Good: In my opinion, we haven’t worked great during my previous years here. We do get along. I think we have the opportunity to work together much more as we move forward. We started to do that in some different areas. We’re looking for a facility, right now, to spread our U.S. footprint for manufacturing and assembly. I think it will be a shared work facility.

Each of us brings a different set of skills and talents to the industry. We have the opportunity to leverage some of those to the benefit of the whole. Products are in demand that are made in the U.S., and I think we’re going to be in a good position to service that market. I think all of us are in positions where we’ve seen our businesses start to grow and improve, so I think it gives us a great opportunity to work together.

Marcus Lord: I think it is beneficial to have collaboration amongst all three of us and our different businesses. We’re able to support one another, especially from a technology aspect. If there are questions, you have an outreach program, and we are open to work with each other. Like Earl said, we’re all looking to expand. SECO Corp is looking at making an expansion and still retain the offices in Meadville, but we’re also looking for another location to be able to give us a little bit more bandwidth.

For my group, we’re looking at a lot of operations happening in Mexico. That’s something that we really need to look at from a support aspect. Being three businesses relatively close to one another, it is overall beneficial for all of us.

Peter Zawistowski: It’s not only beneficial for us, but I it is beneficial for our customers. For example: Earl is offering a furnace, and my equipment is like auxiliary equipment to his, so we can offer a full package to the customer. We have expertise across the three companies that we can support and provide all that is needed to customers. I think that is a big benefit.

Manufacturing in the United States: Present and Future (26:50)

Doug Glenn: How has manufacturing in the U.S. been in the past and what are the future plans?

Earl Good: I can throw a couple comments out. Our past manufacturing in the U.S. was done out in Ukiah, for Retech specifically. Ukiah is a great place for wineries and vineyards, but maybe not an industrial furnace manufacturer!

Originally, there was a desire for us to leave all manufacturing and assembly in the United States, by the past CEO, and then we found this facility here in Buffalo. The new CEO, Sławomir Woźniak, said, “Hey, could you guys do some manufacturing and assembly here?”

I said, “Yes!” I think my chin hit the floor, and I was drooling because I thought it was exactly what we needed.

We have the 40,000 square foot facility here that we’ve already filled. We have a customer base that wants more manufacturing and assembly. Having additional manufacturing and assembly, with what we have within Retech — in Poland, in some of the areas, China, and India — gives us a way to support all of our customers’ needs. Some customers are looking for low price options, some want things built here in the U.S. As we become maybe less globalized and more centralized as far as focus, I think we’re going to be able to support all of those different needs for our customers and do it well.

Peter Zawistowski: We are looking to start manufacturing and assembling vacuum furnaces here in the U.S. As Earl said, we had our facility in Ukiah; we had our facility in Meadville. We had two or three companies in the U.S., and we were doing it in different places. Now, we would like to consolidate and leverage the fact that we have three companies here in the U.S.

"It’s not only about manufacturing. We are also thinking about bringing some R&D activities here to the U.S."
Source: Unsplash.com/Getty Image

It’s not only about manufacturing. We are also thinking about bringing some R&D activities here to the U.S. Currently, I think that more often we sell technology, not furnaces. We would like to be able to provide that service to our customers, as well, here in the U.S.

Marcus Lord: Manufacturing was part of the deal of me coming on to SECO. It was really to reestablish what was being done.

Whether or not it makes sense to do full-blown manufacturing (because that’s a huge capital expense upfront) is one thing, and then, of course, training people to be able to do the processes. It makes more sense for us to actually do subassemblies or manufacturing of maybe a smaller part of what we’re looking at, as far as the equipment, and being very specialized on what we do manufacture. That will leave the larger projects either internally or external. As you said, we can’t be really good at everything we do, so we’ll pick and choose what we’re really good at and just exploit it from that point and then grow.

Doug Glenn: There have been major supply chain disruptions over the last couple of years. Can you address supply chain issues for each of your businesses? Are you seeing any difficulties? How much is re-shoring driven by supply chain issues?

Marcus Lord: Part of the directive is to try to be able to control our supply chain and also have better control of when we’re able to deliver equipment — that’s key for most of the customers. They want lead time even more than price. Where we’re seeing the impact for our pieces of equipment is definitively PLC systems. Outside of that, we don’t see much of a disruption. Maybe with some high nickel product that we use in our bayonet heaters; outside of that, it’s restricted to those two items.

Peter Zawistowski: I think we can see the supply chain getting better. But it’s not only the supply chain, it’s also transport cost and time. Right now, we would like to ship the equipment from overseas; but it’s twice as much money and twice as much time. That’s another problem we would like to address.

Earl Good: I think the supply chain varies. What’s kind of unusual in the market right now is you have a project where part of the supply chain works well and the other part not so well. Then, with the next project, it’s the exact opposite. The feedback I get from a lot of suppliers and even some of our customers is that they still have a difficult time finding people, and when you don’t have the people it’s hard to deliver.

Generally, things are improving and hopefully they continue to go in that direction. In the electronic PLC control-type technology, that’s where we see the biggest delays, as Marcus has indicated. That’s an area that is not showing signs of getting better right now. I think, as some of these chip manufacturing facilities come online, you’ll see a big improvement there.

Doug Glenn: How would you categorize upper management in Poland and their vision and their support of what’s going on in North America?

Peter Zawistowski: Expansion in North America is one of the primary goals on the group level right now. All of us are getting a lot of support from the group management. [blocktext align="left"]Expansion in North America is one of the primary goals on the group level right now.[/blocktext]This is the philosophy of the company. We have companies in India; we have companies in China and in the U.S. That’s why we have companies in the local market because they understand the market the best. Our company, in my opinion, is very important.

Doug Glenn: Do you characterize the presence in Europe as being supporting but not micromanaging? They’re giving you freedom and giving some goals to hit and saying, “Go at it, team.”

Peter Zawistowski: There is a direction we all follow but, yes, we have a lot of freedom, ultimately, in the U.S.

Earl Good: I think the support has been great. I think we are given a lot of flexibility as far as how we go about our business and operating it. I think there is definitely a desire to see us grow in the U.S., and I think they’ll give us the tools, the technology, and the ability to do so.

Doug Glenn: Some people, in North America, will say that it’s going to be very difficult for SECO/WARWICK (any one of these three companies, not just SECO/WARWICK Corporation, but SECO/VACUUM or Retech), to survive in the North American market because they have a global headquarters in Europe. What do you say to people that would say that?

Marcus Lord: I would definitely tell them that’s untrue. This is actually the second company I’ve worked for that has most of their operations in Europe. Both of the companies have been very, very successful at going out and putting their footprint on the industry and the marketplace and actually providing equipment, depending on the technologies, that is far superior than what our competitors have.

As far as being able to go into North America: There are directives, there are things you have to follow, but that’s with all corporations. At that point, they might want others to believe we won’t be successful because we’re European-driven, but that’s very untrue.

As Peter has said, we have a lot of autonomy to run the business, we have objectives, we have KPIs that we have to hit. The major idealism is to be profitable and have quality product. With those, it’s easy to drive a business to be successful; it doesn’t matter where it’s managed from.

Peter Zawistowski: My competitor in vacuum heat treating has headquarters in Germany, and nobody seems to care. I think it’s normal. We have a big presence here in the U.S., and that’s all the better.

Earl Good: I think I would add that our competitors try to push that our headquarters are in Poland and maybe our products aren’t as good. I’m a firm believer that if you deliver a good product on time, if the product starts up well, and if you take care of your customer, it doesn’t matter where your headquarters are. Customers are going to find you. They’re going to enjoy the experience and come back to you. We’re seeing a lot of our customers come back to us for additional equipment. I think that our competitors can push that all they want. The reality of it is, if you deliver on your customer’s needs, you’re going to have success.

The Future of SECO/WARWICK in North America (37:53)

Doug Glenn: What are you optimistic about regarding the future of your specific company?

Earl Good: That’s a broad-based question, but we had a very good year in 2022. I think we’re headed to a very good year in 2023, and our focus is on continuing to grow, continuing to develop products that the market needs and wants. I think we have some good things that we’re working on in R&D, so I’m very optimistic about our future and about our direction. We’re on the right path and doing a lot of the right things.

Heat Treat Radio
Source: Heat Treat Today

Marcus Lord: With SECO/WARWICK Corp., we closed the year out with a very large sale. That is continuing into 2023 where we have a growing backlog which is good. It shows we’re continuing to service the industry and also providing quality equipment. I don’t foresee that diminishing at all; I just see it growing. As we support one another, that’s the best way to continue our paths.

Peter Zawistowski: We will continue to grow. I see a big opportunity for us in the U.S. SECO/VACUUM is a fairly young company; it’s 5½ years old. I think we will get more market share by having satisfied customers.

Doug Glenn: What is most exciting about what you’re doing in the market right now?

Marcus Lord: I guess I’m a workaholic, so that really helps. I’m actually on vacation right now and here I am working. I’ve been doing emails and that’s just part of the business, right? For me, it’s putting the bridges back in place that should have always been there, that deteriorated just through the history of SECO Corp. along with SWSA, and really growing the label. All I’ve heard is negativity and what that negativity does to me is it actually drives me to make the business better. It’s more personal than it is a corporate thing because I like proving people wrong. That’s what drives me.

Earl Good: I think the energy comes from the fact that we’ve made tremendous progress over the last 5+ years. We’ve seen Retech change our image in the market; there were definitely issues and problems. The fact that we see customers coming back to us with repeat orders indicates that we are delivering to our customers, meeting their needs, and satisfying them.

I always say if you go above and beyond the customer’s expectations, everything else takes care of itself. That’s where I’d like to leave it. I think we’ve made great progress and I see good things in our future.

Peter Zawistowski: Personally, I like the fact that every day is different and every customer is different. One day I will talk to a heat treater because he needs a furnace to heat treat nuts and bolts. The next day we have to develop a new power train for a helicopter, or we have to set up a reactor for new fusion energy. I don’t think there is any other industry or anything else than heat treating that you can actually touch a number of different industries. That’s what I personally like and what drives me every day.


About the experts:

Earl Good, president and managing director at Retech Systems: He graduated from Penn State University, where obtained a Bachelor of Science Degree in Electrical Engineering. Eight years later, he received a Master of Business Administration Degree from Lebanon Valley College. Earl has spent a majority of his working career with three different companies, General Electric Environmental Services, Marsulex Environmental Technologies, and Metso Minerals. He has held roles of increasing responsibility throughout his career, including various management positions. Earl Good was appointed to the position of Member of the Management Board of SECO/WARWICK S.A. starting on January 2, 2019. Currently Vice President, Business Segment Vacuum Melting & Managing Director at Retech Systems LLC.

Marcus G. Lord, president and managing director at SECO/WARWICK USA: He earned his Business Administration BBA Executive Management degree at Cleary University. He has worldwide executive leadership experience in innovative manufacturing processes, operational excellence, sustainability initiatives in the supply chain, and operations management. Marcus has served in a multitude of roles, including Manager of new tooling and dies repair( at National Set Screw (PCC)), Director of operations( at Wyman-Gordon and Oerlikon – Metco), Executive Manager BMO (at Carpenter Technologies), General Manager – Manufacturing (at Carpenter Technologies). Currently President and Managing Director at SECO/WARWICK Corp.

Peter Zawistowski, Managing Director a SECO/VACUUM, USA: He graduated from Technical University of Czestochowa where he earned a Master’s Degree in Material Engineering. He also graduated from Executive Program in General Management (EPGM) from the Sloan School of Management at MIT (Massachusetts Institute of Technology) completing extensive training in a variety of business management courses. His work experience at SECO/WARWICK began in 2005 as melt team service manager. In 2009, he assumed director duties of the vacuum carburizing furnace group. In 2013, became Global Product Manager of the vacuum carburizing and vacuum oil quenching group and in 2014 ascended to the General Manager position for product management and sales at SECO/WARWICK Corp. in Meadville, Pennsylvania. Currently, he is Managing Director of SECO/VACUUM, North America’s newest vacuum furnace company.


 

To find other Heat Treat Radio episodes, go to www.heattreattoday.com/radio.

 


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Heat Treat Radio #94: A North American Alliance — 3 Managing Directors Speak Read More »

Manufacturer Adds Gas Generator To Improve Sustainable Heat Treating

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Marcio Boragini
Sales Director for Brazil at UPC-Marathon
Source: LinkedIn

A gas generator was recently installed for Jomarca, one of the biggest manufacturers of fasteners, bolts, nuts, and fixing elements in Brazil. The generator will supply exothermic gas to a continuous wire annealing furnace, which is part of the manufacturer’s efforts to meet market demand efficiently and sustainably for baling wire in the construction industry.

Using exothermic gas instead of nitrogen, the company expects to reduce operating costs, increase production efficiency, and improve the wear properties and finish of its wire products.

“By providing them with our latest generator technology," commented Marcio Boragini, sales director for Brazil at UPC-Marathon, "we have helped Jomarca improve process efficiency, achieve sustainability, and exceed their customers’ expectations for high-quality wire products.”

Jomarca already owns two endothermic gas generators from UPC-Marathon, a Nitrex company with headquarters in North America. In March of this year, the company upgraded its wire operations with a 150 m3/h capacity ExoFlex generator to ensure consistent gas composition and prevent scale formation on the wire surface. 


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Tip-Ups: A Viable Solution To Customize Your Heat Treat Department

OCHeat Treat Today asked tip-up manufacturers to help heat treaters understand the variability of tip-up options in the market today. In this article, Gasbarre Thermal Processing Systems and Premier Furnace Specialists share unique approaches on how their own gargantuan furnaces serve heat treaters. As you read, note that customization is the critical component to operating a tip-up in your heat treat department.

This original content article is drawn from Heat Treat Today's February Air & Atmosphere Furnace Systems print edition. Have something to share about tip-up furnaces? Our editors would be interested in sharing it online at www.heattreattoday.com. Email Bethany Leone at bethany@heattreattoday.com with your own ideas!


Gasbarre Thermal Processing Systems

What is your system and how does it differ from historic tip-up systems?

Gasbarre has a unique offering of tip-up style furnaces. We offer systems for conventional applications such as austenitizing, solution treating, stress relieving, and tempering. In addition, we also offer atmosphere processes such as annealing and ferritic nitrocarburizing (FNC). For us, tip-up systems are not one-size-fits-all type systems. Systems are designed around our customer’s specific processing requirements. This would include thermal process requirements, load geometry and weight, temperature ranges and uniformity requirements, as well as time to quench specifications.

What are its operational advantages?

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When evaluating a tip-up furnace system, they are typically compared against box-style furnaces and car bottom furnaces. So, what differentiates a tip-up from these other style furnaces? First, you can achieve the main goal of large capacity batch processing, while gaining advantages over box furnaces with wider temperature ranges and tighter uniformity requirements. Box furnaces are more challenging to evenly distribute heat due to the large space requirement for the furnace door, where it is difficult to include heating elements or gas fired burners. Second, you can achieve faster time-to-quench speeds in a tip-up furnace over a car bottom furnace. Car bottom furnaces require the load to be pulled out of the furnace and then the load is typically manually moved from the furnace hearth to the quench. In a tip-up, this process can be automated and completed in 60 seconds or less. Finally, when special atmosphere processes are required, a tip-up furnace offers a superior atmosphere seal to the other furnaces mentioned. With tip-up furnaces, you can seal the furnace using its own weight. Other furnaces require additional mechanical assemblies to achieve a proper seal, which ultimately is more susceptible to leaks and requires more maintenance than a tip-up furnace seal.

Tip-up furnace from Gasbarre Thermal Processing Systems
Source: Gasbarre Thermal Processing Systems

Why should people be paying attention to what you have to offer?

Gasbarre’s broad product offering gives us the ability to evaluate your requirements objectively and offer the best solution for you and your company, whether that be box furnace, car bottom, or tip-up. Tip-up furnace systems are usually not one-off installations. These systems usually involve quenching equipment, material handling, load staging, and other integration. Gasbarre has the experience and personnel to manage such large projects and support the customer to effectively implement a system.

Premier Furnace Specialists

What is your system and how does it differ from historic tip-up systems?

The controls and automation capabilities of our furnaces set us above many older systems still in use today. On the control panel of an older system, you’re likely to see paper chart recorders, maybe a PanelView screen, and dozens of switches, pushbuttons, and pilot lights. Some of our customers prefer these control systems for their familiarity, and that’s fine because we are capable of building this style of enclosure, but most come to us for improvements or new systems entirely. Our standard panel comes with a 23.8” color touchscreen display that lets operators manage or record almost every aspect of the furnace’s operation. This package can be added to existing furnaces as well, as we have performed many control and combustion upgrades on older systems to keep them functional and reduce operating costs. We also offer tip-up furnaces that operate via jackscrews for customers who want to avoid the maintenance and flammability of hydraulics.

Open indirect gas-fired atmosphere furnace used to handle a variety of parts
Source: Premier Furnace Specialists

Modern burner technology also offers a massive improvement over older systems. With rising energy costs for all fuel types, any increase in efficiency will quickly become a source of savings which can be redirected into other areas of your company. Improvements to burner design offer increased preheat, recuperative, and regenerative possibilities, which offer fuel savings across multiple temperature ranges and reduce emissions to keep in line with changing regulations. A standard burner can heat up and cool down faster, take less time to tune, and reduce maintenance hours and headaches compared to older models of burners with knowledgeable air and gas train design coupled with modern burners.

What are its operational advantages?

Our systems allow greater flexibility for integration with existing and future equipment as well as simplified operation. One of the largest complaints we hear in every industry is about the struggle to retain maintenance and equipment operators’ knowledge once a senior member leaves a company. For this reason, it is important to have a simplified controls interface that allows new operators to get up to speed quickly. As a service company as well as an OEM, we have extensive experience working on and upgrading many brands of equipment. This enables us to easily integrate our solutions to match what customers are familiar with while also reducing maintenance requirements.

Closed furnace with work chamber of approx 31' x 9' x 9' with load capacit of 90,000 lbs.
Source: Premier Furnace Specialists

Why should people be paying attention to what you have to offer?

Despite OEMs trying to convince you, sometimes a standard “cookie cutter” model just isn’t the right fit for a job. It can take years to build up a budget for a new furnace system. Don’t invest those hard earned dollars into a piece of equipment that won’t do everything you need, exactly how you need it done. We are willing to take on the jobs that require creative solutions and extensive automation. Premier’s custom engineered systems live up to our namesake. Some of our recent projects have included a 130 ft long roller hearth furnace system with automated cooling/sequencing/handling of over 40 loads simultaneously; and a car bottom furnace with a 15’ x 15’ x 15’ work chamber capable of controlled heating and cooling of 160,000-pound loads.


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Tip-Ups: A Viable Solution To Customize Your Heat Treat Department Read More »

Victaulic Adds Foundry and Manufacturing Company

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Rick Bucher
President and CEO at Victaulic
Source: LinkedIn

On March 30, 2023, Victaulic, a manufacturer of mechanical pipe joining, fire protection and flow control solutions, acquired Horizon Metals Inc., a foundry with heat treatment capabilities, located in Nephi, Utah. The acquisition supports growth in the infrastructure and waterworks market by increasing capacity for large-diameter piping solutions made in the U.S.

Horizon Metals, Inc. has been a family-owned and operated iron and steel foundry with heat treating capabilities including: austenitizing, normalizing, water/air quench, tempering, stress relieving, and solution annealing. "Horizon Metals represents Victaulic’s fifth foundry in North America and our fourth foundry located in the United States.” commented Rick Bucher, president and chief executive officer of Victaulic.


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New Vacuum Furnace for Michigan Heat Treater

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The new transformer
Source: Solar Atmospheres

Solar Atmospheres of Michigan took delivery of a new vacuum furnace this week, which will be used primarily for aerospace applications. The Chesterfield, MI, location is set to begin heat treating later this year.

The furnace has a working hot zone of 36” wide x 36” high x 48” deep and can handle workloads up to 5,000 lbs. To power this furnace along with nine other vacuum furnaces, a new 2600kVA transformer was installed. The new facility anticipates being fully operational by the fall of 2023 and will gather all of Solar Atmosphere's Michigan heat treating under one roof.


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New Vacuum Furnace for Michigan Heat Treater Read More »

Heat Treat Radio #93: Why Ion Nitride? An Exploration with Gary Sharp

Today’s Heat Treat Radio episode illuminates how Gary Sharp, founder and CEO of Advanced Heat Treat Corp, began the company. Heat Treat Radio host and Heat Treat Today publisher, Doug Glenn, will hear from Gary about the technical highlights and capabilities of ion nitriding, including: common applications, real-world benefits, and true limitations.

Below, you can watch the video, listen to the podcast by clicking on the audio play button, or read an edited transcript.




The following transcript has been edited for your reading enjoyment.

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Advanced Heat Treat Corp.’s Beginnings with Ion Nitriding (01:20)

Doug Glenn: We’re going to be talking about nitriding, specifically, ion nitriding. Gary Sharp has a long history with the technical aspects of ion nitriding.

Tell us a little bit about yourself and Advanced Heat Treat.

Gary Sharp:  I started with John Deere in the Chemistry department. I have a degree in Science Chemistry. Then I went into various other areas: production support and different management positions before I ended up ultimately leaving to start Advanced Heat Treat.

The way I became oriented and introduced to ion nitriding was a company who we had done work with wanted to sell John Deere some new technology. They came in for some meetings, and we had several meetings with top management. But in 1979/80, that was one of the first real downturns in the ag market. So, Deere wasn’t really interested in taking on a new technology at that time. While I was still interested, I talked to various management people. Ultimately, I got permission to invest and investigate, on my own, the ion nitriding process.

Doug Glenn: Even while you were still at Deere?

Doug Glenn (l) and Gary Sharp (r)
Source: Heat Treat Today

Gary Sharp:  While I was still at Deere, but I had to do it on my own. All of my vacations, my holidays, and things were spent doing market surveys, talking to various potential users and so forth, in the marketplace, to see if it had a “fit.” Because, obviously, when an equipment supplier comes in, everything is nice and rosy and so forth and the equipment works for everything. That’s not always the case, of course.

After discussion with the management, they gave us permission to continue our investigation. From 1979 to 1981, we did a lot of research. I took vacations and went and did market surveys with different potential customers and found out that ion nitriding still seemed to have a lot of the glitz and the shine from the company that came in to talk to us.

We went ahead and, after a period of time and evaluation, put together an investor base. We put together a building, equipment was purchased, and then we began to do ion nitriding. We started with a 25 KW lab unit and a 160 kW unit that we would transfer from development into production-sized lots.

Doug Glenn:  You say “we,” so this was not Deere though — these were the people outside of Deere — yourself and some others, right?

Gary Sharp:  Yes, myself and several others, at the time. Unfortunately, some things happened and partnerships are not always the easiest. That dissolved, and it was pretty much me and my wife and our employee base. That was the start anyway.

The trouble is, early on, the small lab unit worked fine, and we could do out development; but it didn’t transfer over to the larger production unit. We kept having power supply issues. This went on for months and months and months. Ultimately, I had to get legal involved. That churned around for over a year, probably. Here we’re trying to have a startup business and, at the same time, we’re fighting with everything else. The building came together, the lab we put in worked well, but we just had issues.

We weren’t aware of how many pieces of equipment had been sold in the marketplace by this company until we got into legal, and then we started having more serious discussions. They replaced the power supplies with a new source and solved the arc suppression problems and some of the things that were taking place. Basically, we would get into the range of an unstable arc discharge; and instead of heat treating we were melting the parts. Unfortunately, we couldn’t keep many customers doing that! That got resolved, we got additional equipment in the settlement, and then we took off.

Doug Glenn:  When did you actually start the company?

Gary Sharp:  1981/82 timeframe.

From the market surveys, we knew there was considerable interest. Obviously, we went back to some of those folks and started doing some development work with them, particularly on applications where ion nitriding was a significant advantage over some other treatments. Where I was in Iowa, they were doing gas nitriding on cylinder liners. Again, with the market going south for a while, they weren’t interested in any new technologies; and they just continued to do the gas nitriding.

Doug Glenn:  So, you ran through a little bit of legal issues. When would you say was the first time you felt you were up and running?

Gary Sharp:  I think last week, maybe! It took a while.

In our investigation, we found out they had sold quite a few pieces of equipment; and they’d all been mothballed and put on the shelf. In a way, it was a bad deal, but it was good for us because we had the solutions to fix them.

I went around and purchased equipment, 10 cents on the dollar, and bought additional capacity. We would get up to around 70–80% capacity on one vessel, and then I’d go buy another. I’d get that up and established in our plant. It worked out quite well for us, being dumb and stupid, I guess.

Gary Sharp:  It kind of evolved over time. We’ve got 50+ units now — ion nitriding as well as gas nitriding. The nitriding field has been our baby for many, many years. We’ve done a lot of development with other suppliers to make sure the applications they run are using the right process.

What Is Nitriding? (09:03)

Doug Glenn:  Let’s talk a little bit about nitriding. Then I want to hone in a little bit more into ion nitriding. What is nitriding? How is it different from ion nitriding? What are we doing, and why do we do it?

Gary Sharp:  Nitriding is a case hardening process. It is used on a variety of components to improve wear, abrasion resistance, fatigue strength, etc. It’s generally a lower temperature process (than, say, carburizing or anything like that), so you don’t have the resultant distortion and post machining requirements that you do with some of the existing treatments that are out there.

Nitriding is a case hardening process. It is used on a variety of components to improve wear, abrasion resistance, fatigue strength, etc.

As you mentioned, there is ion nitriding, there is gas nitriding, there is salt bath nitriding. All three do similar things, they just have different requirements. Obviously, there are materials and chemistry that are involved with each of those materials, but you can nitride almost anything, at least putting a compound zone or an outer layer on that’s very abrasion resistant. Where the process gets developed is when you have alloy (Chromalloy, malatium, aluminum); these are nitride formers which, combined with the nitrogen at and below the surface, give you a diffusion zone that has longevity and a very high hardness.

Doug Glenn:  In the simplest terms, nitriding is in one sense hardening the surface of a metal by infusing nitrogen, basically. It’s done in a variety of ways, and that’s what I wanted to ask you a question about.

If the total universe of nitriding is 100%, what percent of that, do you think, is gas nitriding, salt nitriding and ion nitriding? Your best guess.

Gary Sharp:  I’ve heard different numbers. Ion nitriding has grown significantly over the years. Up until that point, gas nitriding and salt bath nitriding were probably 70/80%, I would guess. Ion nitriding is quite visual — it has a purple glow. That’s why I’ve got this purple tie on.

Doug Glenn:  I was going to ask why you have the purple tie on. I wondered why www.ahtcorp.com is purple.

The purple glow
Source: Advanced Heat Treat Corp.

We won’t go into the details of gas nitriding or salt nitriding; that can be a topic for another day. Let’s talk a little bit about how ion nitriding gets the nitrogen into the surface of the metal. How does that happen? How does that differ from, if you will, gas and/or salt?

Ion Nitriding (13:40)

Gary Sharp:  It’s a diffusion process. If you look at a piece of equipment, a hearth plate is a cathode in a DC circuit. The vessel wall is the anode, and the gas is your carrier.

Through the transfer of energy, you bombard the part with ions and neutral atoms. They transfer their kinetic energy, and that is what actually heats up the parts. In the early years, that was the only way you could heat the parts. Later came more developed equipment.

Now, you have auxiliary heating in the walls which adds some advantage, but it also adds a little more complexity in terms of keeping and maintaining a current density on the part adequate to diffuse into the metal itself. Sometimes you put it in a vessel, and you turn on the power supply. All the energy is coming from somewhere else, and you don’t actually diffuse or harden the part itself. It’s been solved, obviously, over the years.

Doug Glenn:  Are you making a positively and negatively charged item?

Gary Sharp:  The ions bombard the surface.

Doug Glenn:  Right. The ions bombard it because they’re attracted magnetically?

Gary Sharp:  Yep. And they transfer the kinetic energy. That’s what heated the workpiece up in the early equipment. Like I said, in later equipment, they had auxiliary heating, as well, in the chambers.

Applications of Ion Nitriding (15:17)

Doug Glenn:  Typically, what are some of the more common applications? Is it mostly agriculture, like John Deere?

Gary Sharp:  By no means. When I was still at Deere and left Deere, we made sure we didn’t have conflict of interest. I didn’t even solicit any Deere parts, and that went on for quite a few years. Since, we’ve done parts for them and so forth.

Anything that has high wear and abrasion. One of the advantages that we haven’t talked about is the ability to selectively harden and the ease of masking. “Ease of masking” means instead of using copper paints or stop-off materials, you can just interrupt the plasma from touching that surface. If you have some threads, you just put a nut on there. It blocks the plasma from touching the threads, and they won’t get hard. It is a physical block. And you have maybe an 8–10 thousandths/8–15 thousandths gap and you still don’t diffuse beyond the masking itself.

There are a lot of ways of masking parts with ion nitriding. Those are generally done on customers’ parts that are repeating, so you don’t have to paint them every time they come in. You let the copper paint dry and all of that. We would just use mechanical masking and just use them over and over. They basically last forever.

Doug Glenn:  I’ve heard one of the other real advantages of ion nitriding is blind holes and areas like that where gas flow wouldn’t necessarily get. Even salt might have a little of bit of difficulty getting in there.

Gary Sharp:  It is an advantage. There is an L/B ratio we must be aware of. You conform that plasma to go down in the hole, if it intersects itself with the other side (it’s called hollow cathoding). That is extremely hot and can melt the parts.

That’s what we learned early on, before we got some of the equipment issues resolved, is that we would get in that unstable arc discharge range. We’d basically melt the work piece. And the customers weren’t happy with that!

Doug Glenn:  It’s a bad day when you open the furnace to a pool of metal. That is not a good day!

We’ve got certain benefits there. Any industry, you’re saying, can do it, anywhere where there’s high resistance. So, automotive parts, yes?

Gary Sharp:  Automotive, aerospace. We did the submarine gear for the Seawolf-class submarine, 35,000 pounds, 160 inch diameter. That ran, probably, 400+ hours. Not because it was big, but because they had an extremely deep case requirement. The diffusion took longer, particularly at the lower temperatures that you run, versus other kinds of treatments.

Sea-wolf class submarine
Source: Wikipedia.com/Defense.com News photo

Doug Glenn: With ion nitriding, you are typically below the temperature where distortion could occur, I believe. So, you shouldn’t have to do post hardening processes.

Gary Sharp:  Yes. That is one of the big advantages, for sure. We found that one of the reasons a lot of our customers transition out of one process into ours was because we eliminated some subsequent operations which they typically had to have and reduced their cost. Even though it wasn’t a direct cost in nitriding, it definitely affected that.

Challenges with Ion Nitriding (

Doug Glenn:  What are some possible challenges with ion nitriding?

Gary Sharp:  Loading a chamber and the part spacing you need, depending on what level of backing they’re going to run at, will determine how wide the plasma is. That, in turn, affects then how close you can put parts together or close to each other so that you still get treatment on both products or both pieces. And it does allow you to do mixed loads of different types of things, depending on the level of vacuum and how wide the plasma that you’re conducting surrounds that part.

This is a concern, and that’s why we review all those. Generally, we even run some test samples for the customer. We let them compare our metallurgy with theirs before they commit even further production loads.

We had a steering torsion bar we probably ran 10,000 pieces in a load. We masked the bottom portion of that because it got cross-drilled in the assembly and, of course, they didn’t want to have to drill through a hardened piece of material. Consequently, it worked out really well for us; and we did that for 15/20 years.

Special Consideration: Parts Cleaning (22:17)

Doug Glenn:  I have heard that when you’re ion nitriding, part cleanliness is a critical part. Can you address that?

Parts cleaning
Source: Advanced Heat Treat Corp.

Gary Sharp:  Yes. Of course, we clean everything before it goes in the chamber. Typically, it has been either with an alkaline wash or vapor degrease to get rid of any contaminants off the surface. The early part of the cycle, when you turn the DC power supply on, you begin to sputter. So, any oxides and things like that on the surface get sputtered away before you actually ramp up and start the diffusion phase of the cycle.

Cleaning is important. If you have plating, that often blocks out. If you have dirty parts, that will prevent nitriding. Or, an even worse case, it will sputter off and onto other parts and then you contaminate those as well.  Cleaning is an important part of the equation.

Doug Glenn:  Are there any other common misperceptions about ion nitriding that you would like to address?

Gary Sharp:  I don’t know any more. Back then, when we first started, that’s how we learned some of the things we did, of course. The spacing is important, the gaps are important so that you don’t hollow cathode. And, as you touched on a little bit ago, the cleanliness; if it’s really dirty and contaminated, you’re going to have a void in that area and it won’t nitride. Even a fingerprint could cause an issue.

Cleaning parts it’s getting more difficult, right now, with the push to restrict the use of vapor degreasing and things like that. We have to come up with other cleaning methods that are suitable and still meet the end-product requirements.

Wear and abrasion are big benefits. Treating parts at a low enough temperature that you don’t have distortion. You don’t have to set up and post heat treat machine. Those are all key benefits from the process itself.

It’s repeatable. Over and over, we do thousands and thousands of parts and loads at our different locations. It’s been quite successful for us.

Ion Nitriding and FNC (26:07)

Doug Glenn:  Can you put ion nitriding (or nitriding, generally) in perspective with things like ferritic nitrocarburizing, maybe carbonitriding? Where does it fall on the scale? What are the differences between those processes?

Gary Sharp:  Ion nitriding is most effective when you have Chromalloy, malatium, aluminum, and those types of elements in your product. Of course, with carburizing, that’s not a requirement. With carbonitriding, typically, it isn’t a requirement. Both of those processes are done at considerably higher temperatures which then gets you back into the questions: Is the part going to distort, do we have to post heat machine?

Doug Glenn:  I have one last question for you about people who, potentially, could use your services, but I want to dive a little bit deeper into your company before we wrap up. You’ve got three locations, now, correct?

Gary Sharp:  We have four.

Doug Glenn:  Four locations? Where are they?

Gary Sharp:  Three of them do ion nitriding and the nitriding process. Here, in Waterloo, we have the corporate headquarters where we have the largest ion nitriders. As a matter of fact, we are installing one right now that will do parts upwards of about 30 feet. We have Waterloo, Iowa, and we have the two facilities here in essence where we started. It was risky enough, leaving John Deere, without going somewhere else.

Here, in Waterloo, we have the corporate headquarters where we have the largest ion nitriders. As a matter of fact, we are installing one right now that will do parts upwards of about 30 feet.

Then we added Michigan. Dr. Ed Rolinski was our key “go-to” guy up in Michigan. He lived with me for a year and half. Meanwhile, we were building the facility in Michigan; so he could go back to it.

Then we started a plant in Cullman, Alabama. We’ve got the central Midwest pretty well covered with all types of applications. We’re starting to add some other types of treatments: the black oxide treatment® to kind of subsidize the ion nitriding, if you will.

Doug Glenn:  Let me wrap up with this question:  Let’s say there is a company out there, a manufacturer, who currently is doing some sort of a case hardening process. They’re thinking, “I wonder if I should look into nitriding/ion nitriding.” What would be your guidance for them? What questions should they be asking themselves?

Gary Sharp:  Companies have to go through the some of the same steps we did early on —  testing, making sure the parts/the treatment they select is repeatable, and it fits their end-use.

It’s rather expensive equipment. Some equipment is in excess of $600,000–$700,000 apiece. Depending on the size, they can get even more expensive than that.

We do make some of our equipment, now. We have in the past, particularly, when there were things that weren’t available.

If you’re looking to outsource ion nitriding, you’d start first with the material chemistry and see what materials are used. It has to fit the requirements of the end application, as well. That’s probably the biggest thing.

Then, if it’s got alloy in it and you figure out your case steps and your diffusion requirements, next you would do some development testing on parts and see how it worked in the application and go from there.

Doug Glenn:  And it’s probably best just to ask an expert! At least call and check it out.

Is there any part (or maybe there is more than one) that if you have this part, you shouldn’t even consider ion nitriding — it’s just not going to work?

Gary Sharp: In ion nitriding, a key thing to be cautious of — assuming the material is compatible with the nitriding reaction — is wide holes, or holes we can’t conform the plasma tight enough to reach. In those cases, you’d have hollow cathode and then you’d have a melting issue or damage to the parts.

Parts that have to be nitrided all over can also be problematic. Oftentimes, in those cases, you would nitride for half cycles and then flip them because where it’s sitting is actually getting masked, where it’s sitting on the hearth plate or on your fixture plate or something similar. So, those are the kinds of applications that you have to give more thought to.

Doug Glenn:  We appreciate your time, Gary. You folks have been around a long time, and your reputation is one for doing great work. I hope people will get in touch with you.

 


About the expert: Gary Sharp founded Advanced Heat Treat Corp., “AHT” for short, in 1981. The company initially went to market with its UltraGlow® ion nitriding & ion nitrocarburizing services, but since then, has expanded its offerings to also include gas nitriding, gas nitrocarburizing and UltraOx® as well as more traditional heat treatments such as carburizing, induction hardening, carbonitriding, through hardening and more.

For more information: Contact with Gary or learn more about Advanced Heat Treat Corp. at www.ahtcorp.com, or call 319-232-5221.


 

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Heat Treat Radio #93: Why Ion Nitride? An Exploration with Gary Sharp Read More »

Heat Treat Radio Series for Spring

OC

The days are getting a little longer, you've saved up some vacation hours, it's time for a break this spring!

Make use of some down time to listen in on a couple of Heat Treat Radio series. Putting in some driving miles, relaxing in the sand, or enjoying a staycation all mean some time to peacefully enjoy some heat treat topics. We've put together an original content piece that lets you listen in on a 3-part series on thermocouples, and a back-to-basics series on heat treat hardening. It's nice to know that there is plenty to listen to; you can just click to play each episode!


Thermocouples 101 with Ed Valykeo and John Niggle

This series gives the opportunity to learn from an expert all about thermocouples. The first episode digs into thermocouple history, types, vocabulary, and other basics. Hear from Ed Valykeo, as he gives some of his own history and then dives into all things thermocouple.

1. Heat Treat Radio #61

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The second episode covers thermocouple accuracy and classification. Ed Valykeo continues to review and explain necessary information on how thermocouples are calibrated and used.

2. Heat Treat Radio #62

The final episode in this series gets into discussion with John Niggle about thermocouple insulation types. His review towards the beginning of the episode is helpful, and his discussion of insulation reminds readers that job specifications and requirements are crucial.

3. Heat Treat Radio #64

Metal Hardening 101 

Mark Hemsath sits down with Heat Treat Radio to provide an overview of metal hardening basics. In the first part of the series he provides explanation of what it is, what materials can be hardened, why it has to be done, and more.

1. Heat Treat Radio #49

For the second episode, Mark Hemsath explains five hardening processes: carburizing, nitriding, carbonitriding, ferritic nitrocarburizing, and low pressure carburizing.

2. Heat Treat Radio #54

In this final episode for the metal hardening series, a discussion is presented on newer advances in metal hardening. A call is even put out for new ideas and engineers willing to experiment with some of these advance.

3. Heat Treat Radio #56

As you can see above, this resource provides two series -- each with three parts -- that give a comprehensive look at two fundamental components in the heat treat industry. Both the discussion of thermocouples and the investigation of metal hardening provide educational listening with something for everyone in the form of review as well as maybe some basics that have been neglected or forgotten.


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