Analysis of Influence Factors for White Layer in Grinding of Harden Steel

Abstract

White layers formed in grinding process have negative effects on components. White layer will result in brittle surfaces, which will cause product failure. Since grinding parameters may influence white layer formation, it is necessary to study the relationship between white layer thickness and various grinding parameters. In this study, grinding experiments are carried out using harden AISI52100 steel as work material. Grinding parameters，such as wheel speed, workpiece speed, grinding depth, grinding wheel wear and cooling condition on the thickness of white layer have been studied. The specimens were analyzed using a micro hardness tester and SEM. The experiments indicate white layer depth varies with the different combinations of machining parameters. The depth of white layer increases with the grinding depth, wheel speed and wheel wear. There is a critical work table