管材滚压剪切过程三维弹塑性有限元分析  

3D Elastoplastic Finite Element Analysis on Tube Roll-cutting Process

作　　者：赵晓雯[1] 刘丰[1] 于恩林[1] 

机构地区：[1]燕山大学,秦皇岛066004

出　　处：《中国机械工程》2005年第1期42-45,共4页China Mechanical Engineering

摘　　要：利用ANSYS有限元分析软件,对管材滚压剪切过程进行了数值模拟,同时利用单元死活技术对管材的断裂问题进行了模拟,得到了某一时刻变形区的应力、应变的分布云图。根据有限元计算结果,分析了各种因素对滚切力及切口金属流动的影响规律,通过实验验证了用有限元法进行管材滚压剪切过程模拟的可靠性和有效性,为确定合理的刀具和工艺参数提供了理论依据。The roll-cutting process was simulated by using ANSYS, and at the same time the fracture criterion was simulated by killing elements technique. Based on the distribution of strain and stress at the deformed area obtained in the simulation, we have analyzed the effects of various factors on the rolling-cutting force and the flow of the notch metal. Finally, the reliability and validity of the simulation are verified by experiments, which provides a theoretical basis for choosing appropriate cutters and processing parameters.

关 键 词：滚压剪切机 有限元法 单元死活技术 实验 

分 类 号：TG335[金属学及工艺—金属压力加工]