不同单元形式对多点模具柔性拉伸成形质量的影响  

Effect of unit form on flexible stretch forming of multi-point die

作　　者：程艳艳[1,2] 李明哲[1] 邢健[1,3] 

机构地区：[1]吉林大学无模成形技术开发中心,长春130022 [2]吉林工业职业技术学院化工机械系,吉林省吉林市132013 [3]东北电力大学工程训练中心,吉林省吉林市132012

出　　处：《吉林大学学报（工学版）》2016年第5期1552-1557,共6页Journal of Jilin University:Engineering and Technology Edition

基　　金：吉林省"双十工程"重大科技攻关项目(20150201005GX)

摘　　要：为了提高成形质量,研究了不同单元形式的多点模具柔性拉伸成形。对固定单元和摆头单元多点模具柔性拉伸成形进行了数值模拟,结果表明:摆头单元比固定单元多点模具柔性拉伸成形件表面更光滑,应变分布更均匀,成形精度更高,成形效果更好。对球面件进行了固定单元和摆头单元多点模具柔性拉伸成形试验,验证了其可行性和数值模拟结果的可靠性。In order to improve the forming quality,the flexible stretch forming processes of multi-point die with different unit forms were studied.The flexible stretch forming processes of multi-point die with fixed unit and with swinging unit were simulated.The numerical results show that the flexible stretch forming part of multi-point die with swinging unit is smoother,the strain distribution is more uniform,the forming accuracy is higher,and forming effect is better than that with fixed unit.Flexible stretch forming experiments of multi-point die with fixed unit and swinging unit were conducted for spherical part.It is proved that flexible stretch forming of multi-point die with swinging unit is feasible and the numerical simulation results are reliable.

关 键 词：材料合成与加工工艺 多点成形 固定单元 摆头单元 拉伸成形 数值模拟 

分 类 号：TG386[金属学及工艺—金属压力加工]