锻压技术

基于CAE的典型前围板下横梁冲压成形工艺

英文标题：Stamping process of typical front beam connecting part based on CAE

作者：徐肖黄涛王震

分类号：TG386

出版年,卷(期):页码：2019,44(8):26-34

摘要：

针对汽车前围板下横梁冲压过程中易出现开裂和起皱问题，采用CAE分析调试方法，优化了前围板下横梁的冲压工艺方案，保证产品顺利成形。基于CAE技术与现场实物的对比分析，可以得出：合理设计压料面的形状，可控制产品成形过程中局部的材料流动均匀性，保证冲压件产品质量；通过合理调整拉延与整形的成形量，当拉延深度设为68 mm、整形量为10 mm时，可有效地解决产品成形开裂问题；分模线位置越靠近产品，越能有效控制料片的流动，降低成形起皱风险，增加材料利用率，但会增加压料力；前围板下横梁侧壁处易产生起皱，工艺手段无法完全解决，需在产品结构上进行一定程度的调整。

For the problems of crack and wrinkle existing in the stamping forming process of front beam connecting part for automobile, the stamping process scheme of front beam connecting part was optimized by CAE analysis and debugging method to ensure the successfully forming of products. Based on the comparative analysis of CAE technology and stamping products, it shows that the reasonable design of binder shape can control the local material flow uniformity in the forming process of product to ensure the quality of stamping parts, and the problem of forming crack can be effectively solved by adjusting the depth of drawing and sizing reasonably with drawing depth of 68 mm and the sizing depth of 10 mm. Therefore, the closer the parting line is to the product, the more effective it is to control the flow of sheet, and it can reduce the forming wrinkling risk, increase the material utilization rate and increase the blankholder force. Furthermore, the side wall of front beam connecting part is prone to wrinkle, which cannot be completely solved by technological means, and it is necessary to adjust the product structure to a certain extent.

基金项目：

基金项目:国家科技重大专项（2014ZX04002041）

徐肖（1988-），男，硕士，工程师 E-mail：xxfamily@sina.com

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