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高速、小余量、硬车削是轴承淬硬钢加工的重要发展方向。为了研究小进给条件下轴承淬硬钢硬车加工后表层残余应力的分布问题,采用二维有限元方法对轴承淬硬钢AISI 52100硬车加工过程进行了仿真,获得了加工后材料表层残余应力。基于Konti-Cut用户子程序对稳态切削过程进行建模,并对加工后的表面残余应力进行了预测。通过不同加工参数下的残余应力仿真与实验对比,得出仿真与实验预测趋势基本一致的结论,在工件表层0.02～0.06 mm以上形成了较大数值的残余压应力。
High-speed, small margin, hard turning is an important development direction of bearing hardened steel processing. In order to study the distribution of residual stress in the surface of hard-bearing hardened steel under small feed conditions, two-dimensional finite element method was used to simulate the hard steel AISI 52100 hardened steel. The surface residuals stress. The steady-state cutting process is modeled based on the Konti-Cut user subroutine, and the surface residual stress after machining is predicted. Through the comparison of residual stress simulation and experiment under different processing parameters, the conclusion that the simulation and experimental prediction trend are basically the same is reached. The residual compressive stress with larger numerical value is formed above 0.02 ~ 0.06 mm on the workpiece surface.