Multifunctional fish scale-shaped surface texture capable of reducing stress concentration of cutter and preparation method of multifunctional fish scale-shaped surface texture

The invention discloses a multifunctional fish scale-shaped surface texture capable of reducing stress concentration of a cutter. The multifunctional fish scale-shaped surface texture is composed of a plurality of basic units. Each basic unit is a fish scale-shaped pit, and the plurality of basic units are uniformly arranged according to a matrix shape, a circumferential shape or a circular ray shape. The invention further discloses a preparation method of the multifunctional fish scale-shaped surface texture capable of reducing the stress concentration of the cutter. The method is used for reducing the cutting temperature, reducing the phenomena of cold welding, bonding and diffusion, increasing the wear resistance of the cutter and prolonging the service life of the cutter. 本发明公开了一种具有减小刀具应力集中和多功能鱼鳞形表面织构，由多个基本单位构成；每个基本单元均为鱼鳞形形状的凹坑，多个基本单元按矩阵形状、圆周形状或圆形射线形状均匀排布。本发明还公开了一种具有减小刀具应力集中和多功能鱼鳞形表面织构的制备方法。本发明用于降低切削温度、减轻冷焊、黏结及扩散现象，增加刀具耐磨性的同时延长刀具的使用寿命。