Micro-textured cutting tools were widely reported due to the improved cutting performance, for example, the reduction of cutting forces. However, the cutting performance is significantly dependent on the parameters of the micro-textures. In this work, some polycrystalline cubic boron nitride tools with designed circular micro-textures were designed and manufactured by laser processing technology, and used to machine powder metallurgy materials. The effect of micro-texture parameters (diameter, depth and density) on the cutting forces (F_X, F_Y, F_Z and F_r) was studied by an orthogonal test, the effect of cutting velocity on the cutting force was also studied. The results have shown that the pit diameter and depth have more significant effect on the cutting forces than the cutting velocity and pit density. As compared with the non-textured tools, the textured tools can effectively reduce the cutting forces and the optimal cutting forces were achieved at parameters as 230 μm for diameter, 90 μm for depth, 20% for density and 110 m/min for cutting velocity. The present findings are of significance for the design of polycrystalline cubic boron nitride cutting tools and the processing of powder metallurgy materials.

由于改善了切削性能，例如降低了切削力，因此广泛报道了微纹理切削工具。但是，切割性能很大程度上取决于微织构的参数。在这项工作中，通过激光加工技术设计和制造了一些具有设计圆形微结构的多晶立方氮化硼工具，并用于加工粉末冶金材料。微观纹理参数（直径，深度和密度）对切削力（F _X，F _Y，F _Z和F _{r的影响）}）通过正交试验研究，还研究了切削速度对切削力的影响。结果表明，凹坑直径和深度对切削力的影响远大于切削速度和凹坑密度。与非纹理化工具相比，纹理化工具可有效降低切削力，并且在以下条件下可获得最佳切削力：直径230μm，深度90μm，密度20％，切削速度110 m / min 。本发现对多晶立方氮化硼切削刀具的设计和粉末冶金材料的加工具有重要意义。