钣料正反胀形过程仿真及加压曲线优化  

SIMULATION OF REVERSE BILLOWING PROCESS OF SHEETS AND OPTIMIZATION OF PRESSURE CYCLE

作　　者：朱亚军[1] 王卫英 张中元[2] 

机构地区：[1]南京化工大学机械工程学院,南京210009 [2]南京航天航空大学,南京210016

出　　处：《南京化工大学学报》2000年第6期34-38,共5页Journal of Nanjing University of Chemical Technology(Natural Science Edition)

摘　　要：对圆筒形凹模约束的钣料正反胀形过程进行仿真 ,分析了成形过程工件形状变化及壁厚分布状况 ,通过仿真预测最大应变速率控制压力载荷变化 。The reverse billowing of sheets under cylindrical die was simulated to analyze the deformation of sheets during the forming process and thickness distribution. The maximum strain rate was predicted by simulation to control the forming load, and the optimization of pressure cycle was obtained for reverse billowing of cylindrical part.

关 键 词：正反胀形 超塑性 有限元法 

分 类 号：TG3－39[金属学及工艺—金属压力加工] TP391.9[自动化与计算机技术—计算机应用技术]