锻压技术

矩形件分块压边圈拉延成形及拉延模设计

英文标题：Drawing of rectangular box with segment blank holders and its drawing die design

作者：李钦生何俊刘彦春丁响林

单位：安徽机电职业技术学院

分类号：THl37.52

出版年,卷(期):页码：2018,43(3):42-45

摘要：

为了使压料面上材料能均匀地流进凹模型腔，压边圈做成分块式，且对不同压块施加不同大小的压边力，以获得较大拉延深度。分别采用整体压边圈和分块压边圈两种方案对矩形件进行压边拉延，且分别通过数值模拟和实验两种方法进行比较研究，即先利用Dynaform软件对这两种方案施加不同大小的压边力进行数值模拟，分别得到不同的最大拉延深度。结果表明：分块式压边圈可有效提高制件的拉延极限深度。最后，设计和制造出带有分块压边圈的拉延模来进行实验验证，实验结果与模拟结果相近。

In order to make material on hold surface flow evenly into the cavity of die, the blank holder was made into segment type, and different blank holder forces were imposed on different blocks to get larger drawing depth. Then, a rectangular box was drew by integral blank holder and segment blank holder respectively, and it was comparative studied through numerical simulation and experiment. That is to say, the rectangular part was simulated under different blank holder forces by Dynaform software, and different maximum depths were obtained. It is proved that limit drawing depth can be improved effectively by segment blank holders. In the end, the drawing die with segment blank holders is designed and manufactured to verify the simulation results. The results of experiment are similar to these of simulation. In a word, drawing with segment blank holders is effective, which provides engineering application value and reference value.

基金项目：

安徽高校自然科学研究重点项目（KJ2015A441)；安徽省质量工程项目(2015mooc216)

李钦生(1975-)，男，硕士，讲师 E-mail：ahjdlqs@126.com

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