基于ANSYS的多点式中频感应淬火温度场有限元模拟  

Temperature field FEM simulation of multi-point medium-frequency induction hardening based on ANSYS

作　　者：胡延平[1] 徐强[1] 唐华峰 宋东奇 骆汉丰 

机构地区：[1]合肥工业大学机械与汽车工程学院,安徽合肥230009 [2]安徽省宣城市乾坤回转支承有限公司,安徽宣城242000 [3]奇瑞汽车研发总院,安徽芜湖241006

出　　处：《金属热处理》2015年第4期169-173,共5页Heat Treatment of Metals

基　　金：安徽省科技攻关项目(1301022056)

摘　　要：研究了用多个淬火感应器对半径较大的回转体表面进行中频感应淬火的作用机理,针对较大半径的回转体表面的多点式感应淬火工艺进行参数设计,建立了多点式感应淬火过程的电磁场和温度场的非线性偏微分方程组。利用有限元分析ANSYS软件来模拟多点式中频感应加热过程,其中对激励电流用表格法加载来近似地替代实际旋转工件周期性的感应淬火,从而得到了工件温度场随时间的变化规律以及最终工件的温度场分布。结果表明,多点式中频感应淬火改善了较大半径的回转体的凹槽表面淬火过程,可以达到对感应淬火工件淬硬层的要求,解决了由于不同时感应淬火所导致的软带问题。Mechanism of multi-point induction hardening for the larger turning radius workpiece surface and the process parameters of multi-point induction hardened surface of the larger radius were studied, and the nonlinear partial differential equation of electromagnetic and temperature fields were built for the multi-point induction hardening process. With the table method loaded with the exciting current approximately instead of the actual rotating workpiece periodic induction hardening,the multi-point medium-frequency induction hardening process was simulated by using FEA software ANSYS, and the temperature variation with time and the distribution of the workpiece temperature field was obtained. The results show that multi-point medium-frequency induction hardening can improve the surface hardening process of the larger turning radius of the workpiece,which not only achieves the required induction hardened layer of the workpiece but also solves the soft belt problem due to the non-simultaneity during induction hardening.

关 键 词：多点式 软带 有限元分析 中频感应淬火 

分 类 号：TH164[机械工程—机械制造及自动化]