Laser-assisted microcutting (LAMC) is a feasible technique for precision machining of amorphous alloys. However, due to the significant difference in deformation characteristics between amorphous and crystalline alloys, the research on LAMC of crystalline alloys cannot be directly used to explain the phenomenon of amorphous alloys. This paper studies the surface defect generation process in ultraprecision machining of Ni-P amorphous alloy by stepped microcutting. It is found that LAMC can greatly reduce the accumulation of elastic potential energy and the deformation zone, thus suppressing the generation of in-plane chipping and edge chipping. LAMC experiments of Ni-P amorphous alloy with different laser irradiation power show that the laser assisted temperature should be controlled around T_g.

激光辅助微切割（LAMC）是一种用于非晶合金精密加工的可行技术。但是，由于非晶态合金和结晶态合金的变形特性存在显着差异，因此对结晶合金的LAMC的研究不能直接用于解释非晶态合金的现象。本文研究了逐步微切削Ni-P非晶态合金超精密加工中表面缺陷的产生过程。研究发现，LAMC可以大大减少弹性势能的积累和变形区，从而抑制了面内碎屑和边缘碎屑的产生。不同激光照射功率的Ni-P非晶合金的LAMC实验表明，激光辅助温度应控制在T _g左右。