锻压技术

多弯角车身钣金件多工位级进模设计与应用

英文标题：Design and application of multiposition progressive die for multiangle car body sheet metal parts

作者：赵殿明王利黄昭明陈华沈晨

单位：吉林工程职业学院马鞍山市汽车冲压模具先进设计工程技术研究中心宣城职业技术学院无锡九和模具有限公司

分类号：TG385.2

出版年,卷(期):页码：2020,45(3):125-130

摘要：

为避免冲压过程中多弯角结构引起的零件内部孔形和外部轮廓的边界误差导致级进模技术实施失败,以多弯角车身钣金件为对象，分析了制件的多弯角冲压成形工艺方案，设计了毛坯排样图；其次，应用单工位全工序有限元法(FEM，Finite Element Method)，分析了零件的冲压成形过程，验证了冲压工艺参数与工艺方案的可行性；再次，以所设计的毛坯排样图为基础，对多弯角车身钣金件级进模进行结构概要与工序结构设计，设计并制造了1套13工位级进模；最后，进行了实冲试验，试验获得的制件外观质量好、表面光滑、无起皱与破裂等成形性问题，且关键成形部位精度达到了零件图的设计要求。试验表明：所设计的级进模能够满足企业的生产要求，且设计过程是合理的。

In the stamping process，the multiangle structure will cause the boundary error between inner hole and outer contour of part，in order to avoid the failure of progressive die technology due to the boundary error，the multiangle stamping process scheme was analyzed by taking the multiangle car body sheet metal parts as the object，and the blank layout diagram was designed. Secondly，the stamping process of parts was analyzed by using FEM (Finite Element Method)of single-station full process，and the feasibility of stamping process parameters and process scheme was verified. Thirdly，on the basis of the blank layout diagram，the structure summary and process structure of progressive die for the multiangle car body sheet metal parts were designed and a set of progressive die with thirteen positions was manufactured. Finally，through the practical stamping test，the product has good appearance quality，smooth surface and no wrinkle，crack and other formability problems，and the accuracy of the key forming positions meets the design requirements of the part drawing. The test shows that the progressive die designed can meet the production requirements of enterprise, and the design process is reasonable.

基金项目：

院级科研振兴提升计划项目（ZXTS201801）；中国职业技术教育学会职业教育教学改革项目（1910293）

作者简介：赵殿明（1968-），男，学士，副教授 E-mail：3388532990@qq.com 通讯作者：黄昭明（1981-），男，硕士，副教授 E-mail：jimmymacy@163.com

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