A different method to produce a sample that has a very consistent amount of thermal damage.

Gleason 350GMS helps put higher quality, more reliable gears into its next-generation TC10 automatic transmission.

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.

In order to grind gears burn-free and as productively as possible, a better understanding of the process is required.

Instances of damage to discontinuous form ground and surface-hardened gears, especially of large scale, have recently increased. This may be attributed partly to a faulty grinding process with negative effects on the surface zones and the surface properties.