Hot Seat

Only the plasma process can come close to matching CGN’s speed with equal or...

With the reach of the Internet and its influence on technology sharing, you would think that by now we in the United States would...

Russian Catalytic Gas Nitriding process has migrated to the U.S., could alter thinking of...

Heat treating is often a conflict in terms: Heat, then cool as fast as possible while trying to reduce distortion. Case hardening steel is...

We need a nitriding process combining speed and control of plasma, without the degree...

In the last four weeks my work has taken me to Austria, Slovakia, Wiesbaden, Germany, Russia, and Cincinnati, Ohio, all having to do with...

Thinking of bringing heat-treat process in-house? Benefits exist, but there are many factors to...

“Show me the money!” Rod Tidwell challenged Jerry Maguire with that line in the movie of the same name, and it’s also the comeback...

Heat treaters of old were onto something heating and cooling in steps to reduce...

Maybe our grandfathers had it right after all when it comes to controlling distortion in heat treating. Before there was X-ray defraction, Computational Fluid...

Heat treating has evolved, but all involved must still choose the most cost effective...

Look around you sometime. Whether you’re in a car driving to work or shopping in a mall, metal is everywhere. Dental tools are made...

Transporting carburizing media to the target

In last month’s column I touched on some aspects of atmosphere and vacuum carburizing furnaces. The following is a comparison of the physical relationship...

Understanding equipment used in the endo and low-pressure carburizing processes

I’ve explained in previous columns a few basic tenants of endo and low pressure carburizing processes, so perhaps a discussion of the equipment used...

When considering vacuum carburizing, audit post heat-treat processing cost to determine if the costs...

I have nothing against vacuum carburizing, I’ve spent a good deal of my career developing and selling the process, it’s just that few applications...

Interest in high-pressure gas quenching (HPGQ) increases

Hydrogen for high-pressure gas quenching (HPGQ) has the highest thermal conductivity and heat capacity of any commercially available gas, but currently is not used...

Carburizing vs. nitriding: Where does the future lie?

In last month’s column I highlighted difficulties in applying the plasma nitriding process. In many ways the process’s expected outcome had the right idea;...

The inside story of ionitriding in the United States

When ionitriding—or generically speaking, plasma nitriding technology—was being transferred to the United States from Germany in the mid eighties I was managing an R&D...

In applying heat-treat theory, understanding the reality of surface hardening equipment and processes is...

Much has been opined over the decades and presented in numerous formulae and graphs to explain the case hardening process, especially endothermic and low...
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