MEDICAL HEAT TREAT NEWS

Heat Treat Basics: Bringing Nadcap to the Medical Industry

BOTW-50w  Source:  Power Transmission Engineering June 2016

“For suppliers, the other way to get involved is obviously through getting audited for accreditation. If you’re interested in an audit, the process is fairly straightforward. Once in contact with MedAccred, a supplier details their products and figures out what categories they should be applying for.”

Find out what medical options are available to the heat treating world by reading:  Bringing Nadcap to the Medical Industry

 

 

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Effect of Heat Treatment on the Tensile Strength of ‘Elgiloy’ Orthodontic Wire

BOTW-50w  Source:  Dental Materials –

Elgiloy is the trade name of a cobalt–chromium–nickel superalloy that is offered for orthodontic use as wire. Despite some years of use, there is very little information in the dental literature on its mechanical properties, and especially on the effect of the hardening heat treatment (HT), that may be used after forming, on the tensile strength (TS) in relation to the four ‘tempers’ that are available.

Read More:  The Effect of Heat Treatment on the Tensile Strenght of “Elgiloy” Orthodontic Wires by S.M. Philip and B. W. Darvell

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Metal Medical Miracles

BOTW-50w  Source:  Today’s Medical Developments –

Many physical ailments would go untended if it weren’t for the metals and heat treatments used to repair us. Cobalt chrome alloys, titanium, stainless steel – these and a host of proprietary metals are used in knee and hip joint replacement, fusion cages that relieve pressure on ailing discs, pacemakers and pumps, and the screws and hardware that hold it all together.

Read More:  Metal Medical Miracles – Sandvik Coromant

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Schafer Gear Works Transfers its Fort Wayne, Ind., Commercial Aviation Shafts and Small Gear Capabilities to South Bend, Ind.

Shafer Gear Works, Aerospace Heat Treat, Automotive Heat Treat, Medical Heat Treat, Manufacturing Heat TreatTo meet Schafer Gear Works’ growing demand for high-precision commercial aviation shafts and gears, the company recently moved its Fort Wayne, Ind., operations to its larger production facility in South Bend, Ind. “Acquisition of new, state-of-the-art equipment at our South Bend plant and the ability to better leverage our gear manufacturing expertise led to the transfer,” said Paresh Shah, operations manager for the South Bend facility. The transition was seamless and the plant now produces precision-critical shafts and small-diameter gears with tolerances to 0.0004” and microfinishes to 16 RMS.

Shah said moving the small-diameter gear production 90 miles west to Schafer Gear Works South Bend will improve design and manufacturing efficiencies as well as customer support. By centralizing the facility’s small- and medium-diameter gear engineering, production and quality control expertise, the company is expanding its presence in the aerospace and automotive industries as well as with medical instruments, light and heavy industrial products, recreation vehicles, and material handling companies. Its efforts to reduce tool costs and downtime keep pricing competitive and delivery among the fastest in the gear-making industry. Because of the South Bend facility’s continuous equipment improvements and stringent quality standards, it has earned ISO 9001-2008 and AS9100 certification.

Schafer Gear Works manufactures one of the widest ranges of custom-engineered, precision-cut gears for off-highway markets. In addition to the small-diameter gears and precision components, the South Bend plant produces 1.5- to 10-inch diameter spur, internal and helical gears as well as shafts.

Schafer Gear Works Transfers its Fort Wayne, Ind., Commercial Aviation Shafts and Small Gear Capabilities to South Bend, Ind. Read More »

Heat Treatment of Medical Device Fasteners

BOTW-50w  Source:  Fastener-World.com

Fasteners are used extensively throughout the medical device industry (e.g., dental & orthopedic implants,
instruments), utilizing literally hundreds of different shapes and styles to keep the assemblies intact. Even though the components in the medical devices are small or even tiny, when a fastener fails, the device will almost always fail as well. The correct fastener ensures that the device goes together andstays together for the intended life of the assembly, and that the device performs as desired. The right fastener can reduce the
overall cost of a medical device and improve the quality of the entire assembly. Medical devices fall into two broad categories, surgical/non-implant devices and implantable devices.

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What the Medical Industry Can Learn from the Aerospace Industry

BOTW-50w Source: mdtmag.com

Heat treatment standards are stricter in the aerospace industry than in the medical industry where lives are on the line. This doesn’t make sense and something is being done about it.

Click here to read more about how Bob Hill, President of Solar Atmospheres of Western Pennsylvania believes the medical industry could benefit from adopting quality standards from the aerospace industry.

Author: Bob Hill, President, Solar Atmospheres of Western Pennsylvania

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Heat Treat Enhances Density of DMLS 3D Tools

BOTW-50w  Source:  Stratasys Direct Manufacturing

Metal 3D Printing, or DMLS, has become an instrument for change in medical device and surgical tool manufacturing. Within this white paper, we’ve revealed the key features that make DMLS viable for applications like medical device manufacturing and how you can leverage those advantages for your project. In this white paper, you’ll learn:
1. Metal 3D printing design constraints and freedoms
2. Metal materials including Titanium Ti64
3. Heat treatment methods that enhance the density of DMLS tools

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Laser Marking for Passivation and Corrosion Resistance

BOTW-50w  Source:  Today’s Medical Developments

The most commonly used medical device materials are stainless steel 304 and 17-4. These materials have a natural passive corrosion-resistant layer, consisting of chromium oxide, which resists repeated sterilization and has an inert surface that will not react inside the body.

During the manufacturing process, multiple machining steps can remove or degrade this passive surface by embedding iron chips and particles into the surface. The material must then be put through passivation to rebuild the passive layer – removing iron from the part’s surface, which also removes potential corrosion sites.

The style of mark required by the medical device industry is called a dark or annealed mark. This mark does not remove any material from the part, avoiding any potential for any contamination to collect. When handling the part, the dark or annealed mark must not be able to be felt on the surface of the material. The heat input needed to build up this oxide layer tends to degrade the passive layer on the marked surface and can cause local migration of alloying elements.

Read More:  Laser Marking for Passivation and Corrosion Resistance by Geoff Shannon and Gary Firment

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NIST, Partners Create Standard to Improve Sustainable Manufacturing

BOTW-50w  Source:  Today’s Medical Developments

“According to the U.S. Energy Information Administration, manufacturing accounts for one-fifth of the annual energy consumption in the United States – approximately 21 quintillion joules (20 quadrillion BTU) or equivalent to 3.6 billion barrels of crude oil. To reduce this staggering amount and improve sustainability, manufacturers need to accurately measure and evaluate consumption of energy and materials, as well as environmental impacts, at each step in the life cycles of their products.”

Read More:  NIST, Partners Create Standard to Improve Sustainable Manufacturing

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