基于变压边力的翼子板拉深成形技术  

Drawing technology of fender based on variable blankholder force

作　　者：朱梅云[1] 傅建[2] 崔礼春[1] 熊飞[1] 

机构地区：[1]安徽江淮汽车股份有限公司技术中心,安徽合肥230601 [2]西华大学材料科学与工程学院,四川成都610039

出　　处：《锻压技术》2012年第3期28-31,共4页Forging & Stamping Technology

基　　金：国家科技重大专项资助项目(2010ZX04004-112-4);安徽省科技厅基金资助项目(11010201020)

摘　　要：基于动力显示有限元软件eta/Dynaform对翼子板的拉深过程进行数值模拟,对恒压边力和变压边力拉深成形结果进行对比。结果表明:在其他冲压成形参数不变的条件下,无论增大或减小恒压边力,均得不到合格的翼子板拉深件;但是,采用优化的变压边力曲线控制,并利用伺服技术实现翼子板的变压边力冲压成形,可得到合格的冲压拉深件,最后通过实际试验得到的拉深件与模拟结果一致。Based on eta/Dynaform,the drawing process of fender was simulated.The drawing results with constant and variable blank-holder force were compared.The results show that under constant stamping parameters,none of qualified stamping parts is obtained whether increasing or reducing constant blank-holder force（BHF）.But under the control of optimized variable blank-holder force（VBHF）,the qualified stamping parts are obtained via servo technology.Finally,the drawn part got by practical test is agreed with the simulation results.

关 键 词：伺服技术 变压边力 有限元 翼子板 变压边力曲线控制 

分 类 号：TG386[金属学及工艺—金属压力加工]