蓄能器壳体翻板旋压收口工艺数值模拟  

Numerical simulation on the spinning and closing process of accumulator shell

作　　者：贾军军 尹管彬 杨刚[1] 范俊明 JIA Junjun;YIN Guanbin;YANG Gang;FAN Junming(School of Mechanical Engineering,Sichuan University,Chengdu 610065,China;Chengdu Great High Pressure Vessel Co.,Ltd.,Chengdu 610400,China)

机构地区：[1]四川大学机械工程学院,成都610065 [2]成都格瑞特高压容器有限责任公司,成都610400

出　　处：《压力容器》2021年第8期81-86,共6页Pressure Vessel Technology

基　　金：四川大学-宜宾市人民政府市校战略合作项目(2019CDYB-11-SCU)。

摘　　要：为研究34CrMo4钢蓄能器壳体的翻板旋压收口成形过程及其优化工艺,利用有限元分析软件DEFORM-3D对蓄能器壳体的翻板旋压收口过程进行了模拟分析。研究结果表明,在成形过程中,切向旋压力>轴向旋压力>径向旋压力,其中切向旋压力和总旋压力对温度变化较为敏感,以成形温度1150℃为宜。成形过程中,翻板角速度太大时,容易引起褶皱、堆叠、裂纹等缺陷;反之易出现表面剥离现象,不能使变形区深入内层,收口内表面会出现菊花状缺陷,故翻板角速度取0.0157 rad/s为宜。采用上述工艺数值,在610旋压机上进行试制,试制成品与模拟结果吻合,最终成形效果比较理想。In order to study the spinning and closing forming process and optimization process of 34CrMo4 steel accumulator shell,finite element analysis software DEFORM-3D was used to simulate and analyze the spinning and closing process of accumulator shell.The results show that the tangential spin pressure>axial spin pressure>radial spin pressure.Among them,the tangential spin pressure and the total spin pressure are more sensitive to temperature change,and the suitable forming temperature is 1150℃.In the forming process,if the angular velocity of turning plate is too high,it is easy to cause folds,stacking,cracks and other defects.On the contrary,surface peeling phenomenon is easy to occur,making the deformation zone unable to go deep into the inner layer,chrysanthemum shaped defects will appear on the inner surface of the closure,so the suitable angular velocity of the turning plate is 0.0157 rad/s.The above process parameters were used to carry out trial production on 610 spinning machine.The trial-produced product was consistent with the simulation results,and the final forming effect was ideal.

关 键 词：蓄能器壳体 34CrMo4钢 翻板 热旋压 收口 

分 类 号：TH49[机械工程—机械制造及自动化] TG050.6[金属学及工艺]