Characterization of 3D Surface Roughness in Micro-Milling

Due to the large reduction in workpiece size and tool size, the quality of the micro-milling surface has a greater impact on the product than that obtained by conventional milling. Since the typical two-dimensional surface roughness parameters can only partially reflect the state of the surface, a three-dimensional surface roughness evaluation system is proposed to characterize the micro-morphology of the micro-milling surface in this paper. The...