中文摘要：

以金属玻璃切削过程中的屈服形变为研究对象,引入源于岩土领域的M-C屈服准则来解决传统Treaca准则及Mises准则不能反映金属玻璃的应力敏感性问题。另外鉴于金属玻璃的温度敏感特性以及切削加工时较高的切削温升,将经过温度修正的改进型M-C屈服准则应用于金属玻璃的切削模型之中。切削力实验表明,基于传统屈服准则、不含温度项的M-C屈服准则以及经过温度修正的M-C屈服准则所建立的切削力模型中,后者的解析解与切削力实测值相比误差最小（平均误差8.92%）,说明经过温度修正的M-C屈服准则可以较好地反映金属玻璃切削加载的切削力及材料形变过程,为后续金属玻璃切削机理的深入研究奠定了理论基础。

英文摘要：

Taking the yield deformation of metallic glass in cutting as the research object, the Mohr-Coulomb （ M-C ） yield criterion originating from the geotechnical field was adopted to solve the problem that the traditional Tresca criteflon and the Mises criterion do not reflect the stress sensitivity of metallic glass. In addition, in view of the temperature sensitivity of metallic glass and high cutting temperature in the cutting process, the M-C yield criterion with temperature correction was applied to the cutting model of metallic glass. The orthogonal experiment on cutting force shows that, in the three cutting force models established respectively based on the traditional yield criterion, the M-C yield criterion without the temperature item, and the M-C yield criterion with temperature correction, the last one＇ s error was smallest （ average error of 8.92% ）. It shows that the M-C yield criterion with temperature cor- rection can be used to describe the deformation process in cutting metallic glasses. The conclusion provides the theoretical foundation for further research on the cutting mechanism of metallic glasses.