Monday, November 28, 2022

Hardening and tempering in the same cell

Tempering hardened steels is one of the most important heat treating processes used in part manufacturing. Induction tempering produces hardness and mechanical properties similar...

Heating with natural gas

It’s no secret that the heat treating industry is one of the major recipients of the impact when the U.S. Environmental Protection Agency (EPA)...

Q&A with Brian Russell

Q: Tell me a little about the history of Dry Coolers, Inc. We started in 1985 to provide cooling water solutions for heat treating equipment—for...

True Carbon Potential

The relationship between a carbon-rich atmosphere and its effects on low-carbon steel are well known. The evolution of carburizing led to in-situ monitoring of...

Materials Selection for Induction Hardening Processes

Induction hardening is the most common technique of the various types of applied energy processing. It uses alternating current that induces a magnetic field...

Intensive Quenching Calls For Very High Cooling Rates Part 2

Intensive quenching (IQ) is defined as cooling, usually using pure water, at a rate several times higher than the rate of conventional quenching. Fast,...

Poor Carbon Control

Carburizing has an advantage over other gear case hardening processes because it increases a gear’s ability to carry high torque. Carbon control is critical to...

Different Scales Are Used For Rockwell Hardness Testing

Production Bench Rockwell Hardness Testing of Small Work Pieces As induction hardened workpieces get smaller in size, attention to the proper abrasive cutting of the...

Intensive Quenching

Heat treating is similar to art in many ways, but not for the reasons you might think. Art, it’s said, is in the eye...

Q&A with Bob Wells

What are some factors one should consider in cryogenic processing of gears? First off, what is the size I need? Secondly, how do I want...

Furnace atmospheres and temperature

Getting the Right Protective and Carburizing Atmosphere The makeup of a furnace’s atmosphere in the heat treating process varies based upon the application. For carburizing,...

Some workpieces are too large and expensive to fit into conventional benchtop hardness testers

Portable Rockwell Hardness Testing of Large Induction Hardened Work Pieces The previous article identified many factors related to benchtop Rockwell hardness testing practices. This article...

Furnace Maintenance

When a heat treat manager or anyone responsible for purchasing heat treating equipment makes a buy decision, they must first consider the process required,...

Q&A with Jim Litzinger

Your company, Orton, offers TempTabs, some pretty ingenious technology for monitoring temperature throughout a furnace. How did the idea come about? Our founder, Edward Orton...

Site Safety

We live and work around fire all day. It’s pretty much taken for granted. We cook with it, and use it to heat our...

Furnace Atmospheres

The makeup of a furnace’s atmosphere in the heat treating process varies depending upon the application. Sensor technology allows for the in-situ monitoring of...

Testing of Induction Hardened Work Pieces

Hardness testing is a simple and universally accepted practice for checking induction hardened parts and is performed in literally thousands of manufacturing facilities. There...

Carburizing and Steel

In carburizing, gears must be heated to reach the appropriate temperature for the steel grade without causing excessive grain growth and distortion in a...

Process Control and Scada

Heat treaters are always looking for methods to improve productivity without compromising quality. One method that many heat treaters have put in place is...

Induction Hardening Choices for Gears

Of the various types of applied energy processing, induction hardening is the most common. Induction heating is a process that uses an alternating electrical...

Lighter Weight and Increased Fatigue Strength with Adi

Have you ever hit a rock or other hard projectile while cutting your lawn? Have you noticed that the blade is dented, not broken...

Q&A with Tom Ott

Most people don’t associate hardness testing with heat treatment, but it’s very relevant. You say there are a number of products that are really...

Site Safety

In the last issue of Thermal Processing, I wrote a pretty broad and general article about the do's and dont’s of safety, using some...

Compelling reasons normalizing produces high quality gears

In this day and age, adding steps to the gear manufacturing process is not highly desirable unless the benefits far outweigh the costs incurred....

Future of heat treating of gears is similar to garage sale mentality

When and how does a heat treater determine whether to purchase new equipment or rebuild an old furnace? Several years ago I participated in a...

Q&A with Keith Boeckenhauer

What is your background? I have an engineering degree from the University of Missouri and I’ve been with Seco/Warwick since 1984, working in sales, engineering,...

Site Safety

In 35 years, I’ve witnessed many industrial accidents. Even at the start of my career, I was evaluating the combination of events that lead...

Process automation and controls for carburizing

Process control can be defined as the ability to meet certain parameters over time using inputs from the process and controlling outputs for desired...
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