汽车传动轴突缘轴颈感应加热温度场数值模拟研究

建立了某汽车传动轴突缘轴颈感应加热过程的电-磁-热耦合非线性有限元模型，通过数值模拟，给出了加热不同时刻工件内部温度分布。为避免轴颈内孔表面温度过高，采用了对工件内孔进行喷水的强制冷却方式，模拟结果表明，该方法既可满足表面淬火温度，又能有效避免孔壁淬透而导致的突缘内花键变形，对其他薄壁零件的感应淬火热处理工艺研究具有参考价值。

Numerical Simulation Research on Temperature Field of Automobile Shaft Flange during Induction Heating Process

An electromagnetic-thermal coupling finite element model was setup for induction heating process of automobile shaft flange in this paper. From the simulation results, the temperature distribution in the part was presented. Forced cooling by water spraying was adopted to avoid the overtop temperature in the inner hole, and the simulation results show that it not only meets the demand of quenching temperature in outer surface, but also avoid the distortion of inner spline caused by through quenching. These analysis and simulation results have direct reference value for induction quenching technology formulation of thick-wall part.