方矩形管第一道次辊弯成形过程的变形和应力场  

The Deformation and Stress Field for Square Rectangle Tube Roll Forming Process in First Pass

作　　者：徐树成[1] 刘才[2] 

机构地区：[1]北京科技大学压力加工系,北京100083 [2]燕山大学机械工程学院,秦皇岛066004

出　　处：《燕山大学学报》2000年第1期15-18,共4页Journal of Yanshan University

摘　　要：应用三维大变形弹塑性有限元法，对方矩形管第一道次辊弯成形过程中金属流动规律以及应力分布进行了模拟分析。文中考虑了轧件的弹复，保证了下一道次变形历史的延续，从而为真实模拟方矩形连续辊弯成形过程奠定基础。本文的结果对辊弯成形中的产品质量的控制和孔型的优化有着重要意义。This paper presents a simulation analyses of metal flow ruler and stress distributions of square rectangle tube's roll-forming process in the first pass by using 3D large deformation elastic-plas- tic finite element method. Workpiece's spring-back is considered in this paper, deformation's history is assured in the next pass, and then square rectangle tube in continue roll forming process lay a foundation. The simulation results are useful for product quality and the profile designed in continue roll forming.

关 键 词：方矩形管 辊弯成形 变形 应力场 有限元 

分 类 号：TG302[金属学及工艺—金属压力加工] TG306