For many of you who have difficult-to-heat treat parts, whether it’s because of blind holes, or the fact that the part is too big to move, or perhaps you’d like to significantly reduce, if not eliminate, post-heat treat hard machining, you’re going to find today’s Heat Treat Radio episode on laser heat treating especially interesting.

Although it sounds Star Treky, laser heat treating is a pretty well-established technology, although more so in Europe than in the United States. The applications are intriguing, as is the back story of how these two families ended up working together on this innovative method of laser heat treating. The Peters family are long-time heat treaters. The Learn family are long-time laser welders and laser cladders. Both minding their own businesses – literally; both thinking about ways to better serve their customers. These two businesses were from the same small town in Pennsylvania, and they paired up to create a new company called Laser Hard, and now that the younger generations have taken the ball, they’re running with it!

What makes the Laser Hard heat treating method different?

“Some of the things that set it apart from the traditional lasers and systems that are out in the marketplace now is this has the Fonhoffer Control System so there is onboard optical pyrometry which is a very strong tool for this,” says Andy Wilcosz, vice president of operations at Peters’ Heat Treating. “A traditional laser is almost like a guess-and-check type of method where you adjust the wattage, see if you achieved the hardness, and in this system, we have the optical pyrometry that has a feedback loop that reads the temperature of the part and then it can control which is really important as a part’s geometry changes. We are going to be able to have better repeatability and control for our customer’s parts.”

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