Karen Gantzer

Despite the precariousness that has defined the majority of 2020 thus far, the aerospace and automotive industries have not let that uncertainty deter them from releasing two major revisions that directly affect the heat-treating industry. Both, the 4^th Edition of CQI-9 and AMS2750F were released at the end of June (AMS2750F: Expert Analysis).

In this Technical Tuesday feature, Heat Treat Today reached out to the AIAG CQI-9 Heat Treat Technical Committee with questions about the newest edition and how it might affect the automotive heat treat industry. Specifically, we were interested in the significant changes within the 4^th Edition and how organizations can best prepare to implement them.

Several CQI-9 Technical Committee members responded and provided us with some outstanding expert analysis in this Original Content article. Those CQI-9 committee members included: Rick Metcalf, Materials Engineering – Valvetrain PMT, General Motors Company; Medina Kaknjo, STA Global Core Technical Expert/Global Purchasing, Ford Motor Company;Ed Rahe, Heat Treatment Engineer – Metals Group, Fiat Chrysler Automobiles; Jake Sloan, Product Development Manager, AmeriTi Manufacturing [formerly of FCA]; James Hawthorne, current CQI-9 chairperson, Corporate Heat Treat Specialist, Acument Global Technologies; Bob Ferry, Vice President – Engineering & Quality, FPM Heat Treating, John Vander Woude, Metallurgist – Automotive Division, Benteler Automotive Group; and Justin Rydzewski, Director of Sales & Market Development, Controls Service, Inc.

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The Automotive Industry Action Group (AIAG), the organization responsible for the development of CQI-9, cites the Special Process: Heat Treat System Assessment 4th Edition (CQI-9) as a comprehensive assessment, “… covering the most common heat treat processes employed by the automotive industry, intended to provide a common approach to a heat treat management system for automotive production and service part organizations.” Authoring the 4^th Edition of CQI-9 was a collaborative effort, supported by a diverse group of individuals from AIAG member companies representing Tier 1 suppliers, heat treaters (both captive and commercial), and critical service providers within the heat treat industry. However, the force driving CQI-9 forward are the OEM’s – Ford Motor Company, General Motors, and Fiat Chrysler Automobiles (FCA).

It’s been nine years since the 3^rd edition was released. Justin Rydzewski explains the timing, “The 3^rd Edition was a really good document. It was effective and it served its purpose very well. The prolonged life of the 3^rdEdition allowed us to collect a tremendous amount of data and feedback about the document– strengths, weaknesses, etc. This data allowed us to identify, with greater accuracy, where updates and changes were truly needed. Lastly, because CQI-9 is an international document, we spent a great amount of effort ensuring the clarity we were adding to the 4^th Edition was not going to be lost when translated to other languages. As a result of this development process, we feel confident that the 4^th Edition will be an even more effective heat treat system assessment tool than its predecessor.”

What do you believe to be the most notable change in the 4th Edition of CQI-9?

Justin Rydzewski and his colleagues agree on the importance of the digital changes, “Requiring all instrumentation to be digital by June 2023 (3 years after release of the document) is a very notable change. For operations heavily invested in analog instruments and paper chart recorders, this change could potentially result in a significant interruption to operations; especially in the absence of proper planning. However, we are hopeful the change will be a welcomed one as the advantages associated with digital instrumentation are far too great and numerous to ignore any longer.”

Rick Metcalf concurs, “I agree with Justin’s comments on digitizing the process controls. This allows for better off-shift monitoring of the process and provides the OEM with a greater confidence in the supplier’s ability to control the process. This is one of the most notable improvements to the 4th edition.”

Medina Kaknjo, Ed Rahe, and Jake Sloan also cited digitization as an important notable change.

The Heat Treat System Assessment (HTSA) question formatting update is another feature that is encouraging to both Kaknjo and Sloan. Kaknjo shares, “The first notable change users will notice is the new format of the document which now requires the assessor to assess every single requirement and rate it.”

Sloan further explains, “I fall in line with Medina [Kaknjo]. The formatting update is great, especially coming from the OEM side that needs to rely heavily on self-surveys. I believe it makes communication between the heat treater and Customer much easier. Not only does it require each requirement to be evaluated by the assessor, but I think it gives them a much better opportunity to give a full response. Hopefully, this will cut-out a lot of the back-and-forth that can happen when the person reviewing the survey was not onsite for the assessment.”

Bob Ferry also cited the reformatting of the HTSA questions as a notable change adding, “This effort allowed us to review each question and break down the long question paragraphs of the 3^rd Edition. Now, in the 4^th Edition, the requirements for each question are listed separately. With this new approach, the Auditee will not miss important requirements which, in the previous edition, may have been buried in a lengthy paragraph.

The alternative temperature uniformity survey (TUS) testing method revisions were tops for James Hawthorne. “The expansion of the Alternative TUS Testing Methods (P3.4.8) is one of the most notable improvements. The requirements now account for proper procedures and reporting for both property surveys and site developed testing methods. These improvements will allow the heat treater to develop a structured, repeatable, and documented solution based on the requirements of this section.”

John Vander Woude sees the addition of Process Table I – Hot Stamping as one of the most notable changes to CQI-9. “I was involved in creating Process Table I a few years ago, but it was released between revisions and seemed like the stepchild Process Table.  So, personally, it is nice to see it incorporated in the 4th Edition.”

What change/update in the 4th Edition of CQI-9 do you think will be appreciated most?

Metcalf highlights the allowances for exceptions in the Process Tables: “I believe that the most appreciated change to the 4th Edition of CQI-9 is the increased allowance for exceptions to the requirements of Section 4 of the Process Tables. This will allow suppliers of large components to reduce the number of components required to be sectioned daily. However, this does require Customer approval and, ultimately, the OEM.  These exceptions offer the heat treater the ability to reduce some of their inspections, provided the supplier can show the process is statistically capable.”

Qualities of clarity, fluidity, and guidance were mentioned multiple times as “most appreciated.”

Hawthorne shares, “I personally appreciate how fluid the document is now. The effort that was put into ensuring the flow of the document works across the different sections is a great benefit to the heat treat community. As heat treaters read and implement the applicable changes to their organizations, these changes will be appreciated by them as well.”

“The 3rd Edition of the document was already very good. But, I think the most appreciated change will be the even greater amount of guidance and the improved clarity of requirements within the document,” says Rahe.

Vander Woude writes, “I think the most appreciated change will be the guidance portion of the element questions.  This provides clarity, definition, and better understand to some questions that could be quite useful to many users.

Ferry’s appreciation lies in the pyrometry section, “The improved clarity of the requirements along with explanations, definitions of terms, and examples in the Pyrometry section.”

Kaknjo states, “I think the most appreciated change will be that document is now more user friendly as it is easier to use and follow due to the formatting changes that are done on this revision.

Rydzewski not only commends the formatting improvements for clarity and guidance, but also gives kudos to the reference illustrations. “I think the improvements to the formatting of the Heat Treat System Assessment Section 1-3 questions will be greatly appreciated. Question ‘Requirements’ and ‘Guidance’ are now cited separately.” He continues, noting that this change make it “much easier to effectively capture each requirement and to determine the expectations of each question specifically in terms of objective evidence. . . . [also] nearly every reference illustration in the document was updated/improved. Personally, I think they all look fantastic.”

What is something in the 4th Edition of CQI-9 that an organization should make sure they don’t overlook or misinterpret?

Rahe and Ferry both mentioned the importance of the Process Tables. Rahe states, “An organization should not overlook the specific requirements of the various Process Tables. They are an excellent “cookbook” type guide designed to produce best in class heat treated parts for OEM’s.”

“There was more attention put on the quenching section of the Process Tables with added requirements for quench media process controls including quench delay times, liquid quench controls, and gas quench controls. The intent is not only to control furnace temperatures but to also control cooling rates for consistency of quench and heat-treated product,” says Ferry.

Kaknjo advises, “An organization should not overlook that AIAG CQI-9 HTSA requirements are subordinate to Customer-specific requirements. This is not new for revision 4, but something that often gets overlooked.”

Sloan cautions not to overlook the pyrometry section. “I would say do not overlook the new pyrometry section. The requirements have not only been improved, but it is also a great reference for when it comes to how to comply. Also, as Medina was saying, this document is subordinate to Customer requirements, which works both ways. This document allows exceptions to be given but, remember, there must be approval from up the supply chain.”

Socrates said, “The beginning of wisdom is the definition of terms.” Rydzewski shares this mindset as he highlights utilizing the glossary. “The ‘Glossary of Terms’ in CQI-9 is an outstanding resource that should NOT be overlooked or undervalued. In my opinion, the real key to mastering CQI-9 starts with ‘definition.’  When there is not a firm understanding of the terms being used, confusion and/or compliance issues are almost certain. So, for the 4th Edition, our team dedicated a significant amount of time and effort to enhancing the clarity and guidance provided by the ‘Glossary of Terms.’”

Vander Woude concurs, saying, “Like previous edition, this edition not only focuses on heat treatment, but also on many areas that support heat treatment. Overlooking areas such as maintenance, training, document control, and testing (to name a few) may lead to difficulties ensuring compliance.”

“The examples in SAT section that are below the illustrations should not be overlooked. These examples provide guidance of what to measure and how to calculate. Use these examples and compare to your current reporting, it will help ensure compliance for your organization,” relays Hawthorne.

What advice would you offer an organization preparing to implement the 4th Edition of CQI-9?

What is the consensus of the experts when it comes to implementing this 4^th edition?  Read it. Digest it. Use it. It’s a powerful tool that has been a game changer to the automotive industry. Here are the experts’ final recommendations.

Ed Rahe: “My advice would be to read the document thoroughly and take advantage of the many, many years of heat treatment experience that are captured as best practices in this document.  The knowledge base of those involved in the creation of this document is really quite impressive.”

Justin Rydzewski: “Buy the document, read it carefully, and make notes. Big changes are going to standout, capturing those willbe easy. But, by and large, most changes made were minor or were merely intended to add clarity or guidance. Comparatively, these sorts of changes can be easily missed. And, invest in training where necessary. Now is a perfect time to do so. Invest in yourself and your team. If your organization outsources pyrometry services, lean on your service provider for guidance and expertise. Allow them to help. This is where the true value of a good partnership can be measured.”

[blocktext align=”left”]”The best advice I can give is to read the document. Several items were modified to make it easier to interpret and implement CQI-9.” – Rick Metcalf, Materials Engineering – Valvetrain PMT, General Motors Company [/blocktext]

Medina Kaknjo: “My advice would be to use the document as opportunity, as a tool of summary of best practices, lessons learned of many industry leaders to prevent heat treat process related issues that are often associated with significant cost.”

John Vander Woude: “Don’t underestimate the document. With the reformatting and “break out” of sub-requirements for many questions, I think organizations will find they are not compliant in areas they once thought they were compliant.  The 4th Edition forces added scrutiny to questions that were often overlooked.  Specifically, where many “shall” statements were once made within the same question in the 3^rd Edition. In the 4^th Edition, these “shall” statements are now separated and denoted individually. This approach makes it much easier to capture and provide appropriate objective evidence for each requirement.”

Rick Metcalf: The best advice I can give is to read the document. Several items were modified to make it easier to interpret and implement CQI-9. We also included more illustrations and a greater glossary in the 4^thEdition to make it easier to interpret requirements and implement CQI-9.

Jake Sloan: “Like most people are saying, definitely read the document in its entirety so that your company has a full understanding of the requirements. Also, like Medina said, treat the document as a guide to improve on or maintain best practices. It is a great tool for doing internal reviews so that things don’t slip by the wayside between required assessments. Take advantage of the new format to give clear evidence of compliance instead of just treating it as a checkbox.”

Bob Ferry: “Read the Pyrometry section and make a list of the requirements that apply to your operation from thermocouples to instruments to periodic testing requirements. Set up your system for periodic testing and documented evidence, and then perform a complete CQI-9 HTSA Audit to identify and correct any shortcomings.”

James Hawthorne: “Use the Process Tables, Glossary, and the Job Audit as intended to ensure compliance while documenting your effective evidence in to the HTSA. Each section of this document is an invaluable tool that will help the heat treater remain compliant and effectively provide the objective evidence required.”