基于伺服技术的板材冲压成形性研究  

Research on the formability of steel plate based on servo technology

作　　者：朱梅云[1] 傅建[2] 崔礼春[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》2014年第10期43-47,共5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数值模拟软件eta/Dynform,对后围上横梁板的拉深成形过程进行数值模拟,研究了后围上横梁制件冲压拉深成形过程中板材的塑性变形与其加载方式及速度的关系,板材拉深成形速度由大到小变化时,制件的拉深成形性较好。通过伺服技术的应用,对冲压成形拉深运动曲线进行优化,成功实现通过改变冲压成形过程中的运动轨迹来提高冲压成形性能的目的。模拟实验和物理实验验证相吻合,均得到合格的冲压拉深件。Based on eta/Dynaform, the drawing process of upper beam in rear body was numerically simulated. The relationship among plastic deformatiun of upper beam in rear body, luading modes and velocity during drawing process was studied. When the drawing velocity of steel plate changes from large to small, the drawing formability of the part is good. By serw） technology, the movement curves of drawing were optimized, which improved the drawing formability through changing the movement locus of drawing process. The simulation met with the physical experimental result, and qualified stamping parts were obtained by both experiments.

关 键 词：伺服技术 拉深成形 数值模拟 变速率 成形性 

分 类 号：TG386[金属学及工艺—金属压力加工]