Role of cutting fluid in machining nickel alloys

Abstract

This paper deals with machining EI 698 VD nickel alloy. There is presented influence of cutting fluid application on intensity of adhesion during grinding and related aspects as the grinding forces, thermal load of ground surface and the quality of ground parts in terms of residual stresses. The heat distribution when grinding EI 698 VD nickel alloy differs from the heat distribution when grinding a conventional roll bearing steel. The more significant role takes application of cutting fluid during grinding nickel alloy in comparison with grinding a conventional roll bearing steel. Also, the application of CBN and diamond grinding wheels significantly reduce the thermal exposition of the ground parts, primarily when applying cutting fluid. This fact significantly influences the residual stresses after grinding.