A research on the mechanism and model of surface micro-damage in grinding hardening

Grinding hardening can obtain effect besides fine machining on the surface of workpiece. A certain degree micro-damage will be formed during grinding process which mainly contains micro-crack, melting coating, decarburization, and scratch. In order to study hardening, paper carries a experiment characteristics are observed. The generation mechanism micro-crack is revealed. It by accumulation dislocation pile-up in condition process. When depth reaches value, produced obviously become more serious with increasing depth. Other containing scratch also studied their relevance Based theory theory, model for established. calculating result accords experimental general.