Numerical simulation of wrinkle phenomenon during multi-point forming process of shallow rectangle cup

作     者：裴永生 李明哲 李雪 隋振 

作者机构：Roll Forging Technology Institute Jilin University Changchun 130025 China 

出 版 物：《Journal of Harbin Institute of Technology(New Series)》 (哈尔滨工业大学学报（英文版）)

年 卷 期：2004年第11卷第3期

页      面：300-304页

核心收录：

学科分类：0810[工学-信息与通信工程] 080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0812[工学-计算机科学与技术（可授工学、理学学位）] 080201[工学-机械制造及其自动化] 

基　　金：SponsoredbytheNationalKeyTechnologiesR&DProgramDuringthe 10 thFiveYearPlanPeriod(GrantNo .2 0 0 1BA2 0 3B11)andTrans centuryTrainingProgramFoundationforthetalentsoftheMinistryofEducation 

主　　题：multi-point forming wrinkle numerical simulation shallow rectangle cup 

摘      要：In this paper, the principle of multi-point forming (MPF) technique is presented. One of the most serious defects, wrinkling, during the multi-point forming process of a shallow rectangle cup is discussed by means of numerical simulation on the shallow rectangle cup forming process. The effects of thickness, material of sheet metal and the pressure of the blank holder are investigated. Based on the simulation results, the reasons and control methods of wrinkling are pointed out. Moreover, the experiment on the multi-point die forming of the shallow rectangle cup by the MPF machine is done to validate the efficiency of the numerical simulation, and the result proves that the application of an elastic cushion in the forming can restrain wrinkling efficiently.