锻压技术

基于数值模拟的方锥件侧壁和底部回弹分析

英文标题：Analysis on springback on side wall and bottom of square cone part based on numerical simulation

作者：文怀兴张斌史鹏涛杨新妮孙姝彤

分类号：TG386

出版年,卷(期):页码：2018,43(5):0-0

摘要：

针对AZ31B镁合金材料的方锥件的侧壁和底部回弹问题,利用Abaqus有限元软件，采用单因素实验法，研究了成形角、成形温度、下压量和板料底面面积这4种因素，对成形件的侧壁和底部回弹量的影响。结果表明：如果下压量越大、成形角越大，那么成形件侧壁回弹量越大；成形件底面积越大，成形件底部回弹量越大；如果成形温度越高，那么成形件侧壁的回弹量越小，反之亦然。成形件侧壁最大回弹量均发生在成形深度约为14~18 mm的位置，也就是成形深度中间偏下的位置，其回弹值在1.2~2.1 mm之间;成形件底部的最大回弹量出现在板料中心，其回弹值在0.6~1.1 mm之间。

To study springback on the side wall and bottom of square cone part made of magnesium alloy AZ31B, with the help of Abaqus finite element software, single factor experiment method was used to study the influences of four factors including forming angle, forming temperature, pressing amount and area of bottom sheet on the springback on the side wall and bottom of forming part. The results show that the greater the pressing amount is and the larger the forming angle is, the greater the springback amount is on the side wall of forming part. The greater the bottom area of forming part is, the greater the springback amount is on the bottom of forming part. If the forming temperature is higher, the smaller springback amount is on the side wall of forming part, and vice versa. The maximum springback on the side wall of forming part occurs at the position where the forming depth is about 14-18 mm, which is below the middle position of forming depth, and the springback value is 1.2-2.1 mm. The maximum springback on the bottom of forming part appears in the center of sheet and its springback value is 0.6-1.1 mm.

基金项目：

国家自然科学基金资助项目（51475366，50975229）

作者简介：文怀兴 (1957-)，男，博士，教授 Email：492808529@qq.com 通讯作者: 张斌(1993-)，男，硕士研究生 Email:496726767@qq.com

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