I have used induction heating my whole career. It has been both fascinating and frustrating. 

In the slides below are a couple of the systems I worked on 40 years ago. One machine brazed journal bearing inlays on rock bits; the other was the heat source for post-weld heat treatment. We were hardening and tempering (Q&T) friction welds on drill pipe. Back in the ’80s, we were limited on available frequencies, and we had to build all our own coils, half art and half science. We had to go to extremes, such as moving coils to achieve desired heat patterns. I bought every book I could find on the subject yet I still had to experiment to get the heat patterns and temperatures right.

induction hardening of drill pipe friction weld
induction brazing of rock bit bearing

Fast forward to the 21st century. Induction heating equipment has come a long way. In 2014 we did a study comparing induction, resistance, and flame heating which was published in the AWS Welding Journal.  Read the White Paper

I am proud to announce that we will take some of the mystery out of induction heating. ARC Specialties will be presenting our latest work on induction heating during our July 14, 2021, Applied Automation Seminar (AAS) at our Houston facility. Sign up here FOR FREE!: Induction Seminar Registration

Al Sherrill with Miller Electric Mfg. LLC will kick us off with an explanation of the process. Dave Hebble will present our most recent work comparing induction, resistance, and flame heating then explain how to make good (and bad) coils. Jim Walker will teach how to use feedback from the induction power supply to check coil design and heating efficiency. We will finish up with a demo in our lab. Afterward, attendees are encouraged to visit with our presenters and ask questions.

AL SHERRILL

Induction Technical Manager

DAVE HEBBLE

Technical Services Manager

JIM WALKER

Weld Technician

I WISH I could have attended this class 40 years ago! It would have saved me a LOT of work. If you are using induction heating or even considering it, I encourage you to join us.

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