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Home » Topics » Commentary/Columns » Technical Talk

Technical Talk
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Industry experts cover a range of thermal-processing issues pertinent to their respective fields of expertise.

ARTICLES

nickel brazing
Technical Talk

Nickel-Brazing Requires Tight Joint Clearances

Dan kay 200px
Dan Kay
July 1, 2022
One Comment

Nickel-brazing is unique in the brazing world in that each of the nickel-based brazing filler metals (BFMs) available for use today depends on the use of temperature-lowering ingredients (i.e., temperature-depressants) such as boron, phosphorus and/or silicon to enable the BFM’s usefulness for joining stainless steels and many other superalloys for critical aerospace applications.  


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chart
Technical Talk

Workplace Safety in Heat Treatment

David pye 200px
David Pye
June 3, 2022
No Comments

Safety in the workplace regarding heat treatment connects each and every person who works in either a captive or a commercial shop. We all have an obligation to one another to minimize the risk of accidents and injuries (no matter how minimal or extensive that injury might be).


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painting of man
Technical Talk

Failure Analysts Need Facts!

Debbie
Debbie Aliya
May 6, 2022
No Comments

Since people generally come to failure analysts when they can’t figure things out for themselves, it’s important to have access to reliable facts, know how to recognize them and be able to explain to people why our facts are indeed of the reliable kind!


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brazing cycle
Technical Talk

Eliminating 'Holds' From Your Brazing Cycle

Dan kay 200px
Dan Kay
April 8, 2022
No Comments

Too many companies still use built-in “holds” when heating up parts in their brazing furnaces. I recently asked the production manager at an aerospace company, “Why do your brazing personnel have those temperature holds in their furnace brazing cycles?”


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chte
Technical Talk

Failure Analysis: Is Brittle Behavior Bad?

Debbie
Debbie Aliya
March 11, 2022
No Comments

One of most important technical issues that a fracture analyst must deal with is evaluating whether the crack was ductile or brittle. 


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David Pye
Technical Talk

Dealing with Distortion from Heat Treatment

David pye 200px
David Pye
February 9, 2022
No Comments

This column is designed to help you troubleshoot your heat-treatment problem. It will show you how to be effective, efficient and logical in your troubleshooting and help you determine if the problem is process, material, design or control.


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brazing
Technical Talk

Cleanliness in Brazing is Essential

Dan kay 200px
Dan Kay
January 11, 2022
No Comments

There are a number of very important steps that must be followed in order to ensure good brazing, one of which is that the parts to be joined must be clean before being assembled for brazing.  


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Aluminum
TECHNICAL TALK

Review of Heat Treatment Understanding and Learning

David Pye
December 13, 2021
No Comments

The study of heat treatment and the metallurgy of metals is perhaps the oldest science known to man-kind. If one thinks about that statement, you realize that there was a time that humans used only stone for weapons and digging. Then came the age that carried man into the world of metals.


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Pyrite crystal
TECHNICAL TALK

Minerals: Their Beauty and Mystery

Debbie
Debbie Aliya
November 9, 2021
No Comments

Looking closely at an object and noticing its features and details is a good way to increase our creative powers. Following up on our curiosity is a good way to build a solid foundation of knowledge. Studying natural objects in this way is an excellent entrance to the world of scientific facts.


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concave-fillet
TECHNICAL TALK

What is the Real Purpose of a Braze Fillet?

Dan kay 200px
Dan Kay
October 13, 2021
No Comments

When visiting a brazing job-shop recently, I was told that one of the shop’s clients insisted that some of their components be re-brazed because the braze fillets were not large enough, according to that client. When I examined the component myself, the braze fillet was actually perfectly OK, but the shop’s client thought that all fillets – welded or brazed – needed to be large.


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