Surface integrity in material removal processes: Recent advances

This paper is a result of a three-year study by the CIRP's Collaborative Working Group on Surface Integrity and Functional Performance of Components, and it reports recent progress in experimental and theoretical investigations on surface integrity in material removal processes. Experimental techniques for measuring various surface integrity parameters are presented. Results from a Round Robin Study on surface integrity parameters such as residual stresses, hardness and roughness in turning, milling, grinding, and EDM, are then presented. Finally, results and analysis of a benchmarking study comparing available predictive models for surface integrity are presented, followed by concluding remarks and future research directions.