自由模式下板料拉深成形性能试验研究  

Testing Study on Metal Blank Deep Drawing Process Under Free Working Patterns

作　　者：赵中华[1,2] 徐新成[1] 韦习成[2] 

机构地区：[1]上海工程技术大学工程实训中心,上海201620 [2]上海大学材料学院,上海200444

出　　处：《昆明理工大学学报（自然科学版）》2011年第2期41-45,共5页Journal of Kunming University of Science and Technology(Natural Science)

基　　金：上海市教育委员会科研创新基金(09YZ368)

摘　　要：设计了圆筒形拉深试验模具和伺服压力机的三种自由模式,分析了自由模式下一个工作行程中完成多道次拉深成形时,各段次拉深距离下死点位置、速度比例对拉深极限高度的影响,总结了达到最大拉深高度的参数设置规律.试验结果表明,在伺服压力机下,采用多段工作模式,最大拉深高度可以提高20%~30%.靠近下死点时,应设置为低速拉深.试验中,速度设置为压力机正常速度的10%~20%,效果较好.An experimental deep drawing die for cylindrical work piece and three free working patterns of servo pressure machine are designed in this paper to analyze the multi-steps deep drawing process during a single slider travel stroke.The influence of the drawing distance to lower dead position and working velocity of machine on maximum drawing height is then investigated.Lastly,the laws of parameter setting to attain maximum deep drawing height are summarized.It is shown through the experiment results that the maximum deep drawing height increases 20% to 30% with multi-stage working mode of servo mechanical press and the deep drawing speed should be set close to the lower dead position.In this experiment,the drawing speed is set 10% to 20% of the ordinary value is available.

关 键 词：拉深 自由模式 最大拉深高度 

分 类 号：TG315.4[金属学及工艺—金属压力加工]