Abstract: To solve the problem of abnormal abrasion of Cu-Based Friction Materials (CBFMs), Bionic Non-Smooth Surface (BNS)on friction surface of CBFMs was constructed based on bionic principles, and the optimal bionic prototype was selectedby Finite Element Method (FEM). In addition, the bionic parameters were optimized by Response Surface Method (RSM).Samples holding BNS were prepared by Laser Processing, tribological properties were tested by a Friction and Wear Testerand worn surface morphology was characterized by a Scanning Electron Microscope (SEM). The results showed that BNSon friction surface could regulate the stress distribution and alleviate the peak stress. Among all samples, the coupledtexture of pit-hexagonal got the minimum peak stress. During braking, bionic texture could also collect wear debris orchange the motion forms from sliding to rotation, which can reduce abnormal abrasion. The wear rate was reduced by19.31%. The results in this paper can provide a new idea for enhancing the tribological properties of CBFMs, and canalso lay the foundation for further research of bionic tribology.

Key words: Bionic non-smooth surface, Friction materials, FEM, Wear mechanism')">Bionic non-smooth surface, Friction materials, FEM, Wear mechanism