Consequence of Cutting Parameters on Residual Stresses of AISI 1018 Cold Rolled Steel

Abstract

This paper deals with residual stresses induced by machining processes are a consequence of thermo-mechanical and micro structural phenomena developed during the machining process. In the present study a numerical model has been developed to predict residual stresses near the surface in AISI 1018 Cold Rolled steel. The influence of cutting parameters namely cutting speed, feed rate and depth of cut were investigated using the developed model and validated with the experimental results. A Finite Element Code ABAQUS is being used to simulate the residual stresses during dry turning of AISI 1018 steel. Explicit Dynamics Time Integration with adaptive meshing Finite Element Method is employed to simulate the 2D model. The Johnson-Cook material model is used for illustration the work material behaviour to simulate machining with an orthogonal cutting. X-Ray diffraction technique is being used for the determination of residual stresses induced in machined surface for different cutting conditions. This present study will be useful in understanding of phenomenal behavior of AISI 1018steel. The variation in cutting speed or feed rate strongly influences the residual stresses in the machined surface.