Abstract
Subsurface plastic deformation has attracted a great deal of attention due to its tight relation with surface hardening, microstructure alteration, grain refinement, and white layer formation. Therefore, it is critical to study the subsurface plastic deformation during the machining process. In this study, the digital image correlation technique (DIC) is used to measure the subsurface deformation during the orthogonal cutting process. The cutting tool’s rake angle is varied by a specially designed experimental setup. FEM simulations are carried out to predict the subsurface deformation and comparisons with the experimental measurements are conducted. This study can deepen the understanding of the generation of surface integrity and can be further developed for implementation into the online conditioning of surface integrity.
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