Electromagnetic induction quenching is one of the common surface strengthening approaches conducted engineering application, especially for the steel parts. In this paper, first a 3D finite element model was built and the electromagnetic thermal coupling simulation was used to determine the temperature field after quenching and coolant cooling process. Then the mechanical-thermal coupling simulation was used to obtain the residual stress field remaining in the crankshaft after air cooling. Finally the fatigue property of the treated crankshaft was predicted based on the residual stress and the different mean stress models. Validations between the predictions and the experimental results showed that the combination of the simulation and Goodman model can obtain the fatigue property of this type of crankshaft accurately, thus was suitable for actual engineering applications.

电磁感应淬火是工程应用中常见的表面强化方法之一，特别是对于钢部件。在本文中，首先建立了一个3D有限元模型，并使用电磁热耦合模拟来确定淬火和冷却液冷却过程后的温度场。然后使用机械-热耦合模拟获得空气冷却后残留在曲轴中的残余应力场。最后，根据残余应力和不同的平均应力模型预测了曲轴的疲劳性能。预测与实验结果之间的验证表明，将模拟与Goodman模型相结合可以准确地获得此类曲轴的疲劳性能，