Influence of micro-texture of strip groove on cutting performance of PCBN tool

As a new method of tool structure design, micro-texture has a certain impact on the performance of cutting tool. The strip-groove micro-texture is designed and prepared on the rake face of cutting tool. Combining with the finite element simulation technology, the influence of the strip-groove micro-texture on the cutting force and the machined surface quality is theoretically analyzed. Then, the cutting experiment is designed to verify the finite element simulation results. The results show that finite element simulation and cutting test have similar conclusion. Compared with the non-textured tool, the strip-groove micro-texture can reduce the cutting force, which has the most awesome influence on the main cutting force, and weak influence on feed force. The strip-groove micro-texture makes the surface stress, plastic strain and roughness of the workpiece smaller than those of the non-texture tool. The machined surface quality of workpiece is improved.