Numerical Simulation of Roller: Influences of Process Parameters

Rolling burnishing is a less chip machining process which improves the treated surface integrity. It softens the surface quality and imposes compressive residual stresses. To know the influence of each parameter most of the studies done on this process remain experimental and then expensive. The aim of this work is to numerically analyze the evolution of the part properties after rolling. A two-dimensional model (2D) has been developed and a simulation by FEM has demonstrated the effect of different parameters related to the part or to the process. The model has allowed to determine the effect of the rolling effort, yield stress, coefficient of strain-hardening, rate feed and tool radius, on the treatment homogeneity and the residual stresses profile. The obtained results emphasise and light the conditions to be respected to optimize the rolling operation.