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Articles About Tempering


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1 Carburizing of Big Module and Large Diameter Gears (September/October 2002)

Carburized gears have higher strengths and longer lives compared with induction-hardened or quench-tempered gears. But in big module gears, carburizing heat-treatment becomes time-consuming and expensive and sometimes cannot achieve good hardness due to the big mass-effect. Also, it is not easy to reduce distortion of gears during heat treatment.

2 Austempered Nodular Cast Irons (March/April 1985)

Austempering heat treatments (austenitizing followed by rapid cooling to the tempering temperature) have been applied to nodular irons on an experimental basis for a number of years, but commercial interest in the process has only recently come to the surface.

3 Gear Failure Analysis Involving Grinding Burn (January/February 2009)

When gears are case-hardened, it is known that some growth and redistribution of stresses that result in geometric distortion will occur. Aerospace gears require post case-hardening grinding of the gear teeth to achieve necessary accuracy. Tempering of the case-hardened surface, commonly known as grinding burn, occurs in the manufacturing process when control of the heat generation at the surface is lost.

4 Austempered Gears and Shafts: Tough Solutions (March/April 2001)

Austempered irons and steels offer the design engineer alternatives to conventional material/process combinations. Depending on the material and the application, austempering may provide the producers of gear and shafts with the following benefits: ease of manufacturing, increased bending and/or contact fatigue strength, better wear resistance or enhanced dampening characteristics resulting in lower noise. Austempered materials have been used to improve the performance of gears and shafts in many applications in a wide range of industries.

5 Gear Heat Treating by Induction (March/April 2000)

The induction hardening and tempering of gears and critical components is traditionally a hot subject in heat treating. In recent years, gear manufacturers have increased their knowledge in this technology for quality gears.

News Items About Tempering

1 Induction Hardening and Tempering System for Driveline Components (May 11, 2010)
Inductoheat, Inc., an induction heating equipment manufacturer, recently delivered an induction hardening and tempering system to a leadi... Read News

2 Inductoheat Ships Induction Hardening and Tempering System (December 6, 2010)
Inductoheat, Inc., a leading induction heating equipment manufacturer, recently shipped an induction hardening and tempering system to a ... Read News