Gear Failure Analysis Involving Grinding Burn - January/February 2009
The article "Gear Failure Analysis Involving Grinding Burn" appeared in the January/February 2009 issue of Gear Technology.
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.
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