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Surface damage caused by gear profile grinding and its effects on flank load carrying capacity

: Klocke, F.; Schlattmeier, H.

Gear technology 21 (2004), No.5, pp.44-53
ISSN: 0743-6858
Journal Article
Fraunhofer IPT ()

A detailed analysis of the flank load carrying capacity of helical gears with different surface properties is presented. Nital etching method is used to give information regarding areas of the tooth flank and the root which are susceptible to thermal damage by grinding burn. The reason for the thermal damage is a high local stick removal, which leads to a local overloading of the grinding wheel. The investigations have shown that a slight structural damage of the tooth flank surface layer caused by the grinding process does not necessarily lead to an early gear failure.