Cutting Performance Analysis and Fuzzy Comprehensive Evaluation of Micro-Texture Density Tool
A type of cutting tool with variable density micro-pit texture configuration is designed,and the drilling results are compared between the surface micro-texture and the combined state,and the optimal design method is determined by fuzzy evaluation method.The results show that the reduction of drilling force caused by micro-texture anti-wear and friction is much greater than the additional friction caused by the rough tool surface,resulting in a decrease in the overall drilling force.It is necessary to reduce the amount of micro-texture appropriately,slow down the influence of secondary cutting between micro-pit edge and the chip,and promote the reduction of drilling force.When the texture parameter is 120 μm,the minimum cutting temperature can be obtained,and the texture is denser with the decrease of the texture spacing.In this case,the micro-pit texture has a good wear reduction and anti-wear performance,and the variable density micro-texture is better at reducing the cutting temperature than the constant density micro-texture.Fuzzy comprehensive evaluation shows that the 200-120-160 micro-texture density tool has the best cutting performance.
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