轴承套圈硬车削过程中的残余应力模拟及试验研究

Simulation and Experimental Study on Residual Stress in Hard Turning Process of Bearing Ring

为了研究在小进给量条件下风电机组轴承硬态车削加工后表层残余应力的分布规律，基于大型非线性有限元分析软件ABAUQS，采用合理的材料流动应力本构模型，对风电机组轴承硬态车削过程进行了有限元仿真，获得了硬态车削加工后轴承的表层残余应力。将在不同的背吃刀量和刀具前角参数下的获得的残余应力仿真值与试验测量值进行对比，结果表明：仿真结果与实验结果吻合，通过硬车削加工可以获得400～800 MPa的残余压应力，残余压压力的深度可达0.04～0.08 mm。

In order to study the distribution of the surface residual stress after hard turning wind power bearing under the small feed, based on the advanced nonlinear finite element analysis software ABAUQS, through the selection of materials processing flow stress constitutive model, the machining process of the wind power bearing was simulated and the surface residual stress of the bearing was obtained.By comparing the residual stress of simulation and the experiment in different depth and different rake angle parameters, the result shows that the simulation results are in good agreement with the experimental results, the residual compressive stress of 400~800 MPa can be obtained by hard turning, and the depth of the residual pressure is up to 0.04~0.08 mm.