金属切削过程有限元仿真关键技术及应考虑的若干问题

华侨大学摘要:有限元仿真是研究金属切削的一门有效而重要的技术。本文介绍在金属切削过程模拟中有限元仿真技术的应用和发展,深入分析和研究工件材料模型、自适应网格划分、切屑分离判别、刀—屑接触面摩擦模型以及刀—屑接触长度确定等五项关键技术;讨论了在实际金属切削过程有限元仿真中的真实性、可操作性、效率等方面应考虑的若干问题。

Key Techniques of Finite Element Simulation in Metal Cutting Process and Some Considerations

Finite element simulation is an effective and important technology in metal cutting studying.The application and development of finite element simulation technology in the metal cutting process is introduced,and the five key technologies including work-piece material model,adaptive mesh,chip separation criterion,the friction model of tool-chip contacted surface and tool-chip contacted length determination are researched and analyzed,and some considerations which are authenticity,operability,efficiency and so on in finite element simulation based on metal cutting process are discussed.