锻压技术

车门水切包边质量缺陷分析与改善建议

英文标题：Analysis and improvement suggestions on quality defects in hemming process for water cutting door

作者：潘远安韩菂邵奇遇超赵烨宋岩高硕遥

单位：吉林省锋威机械科技有限公司吉林交通职业技术学院一汽轿车股份有限公司一汽模具制造有限公司

分类号：TG386.4

出版年,卷(期):页码：2019,44(9):93-99

摘要：

针对车门水切钣金包边出现松动引起的包边强度不足及外水切密封条功能失效等质量缺陷进行分析，通过控制其包边厚度可以消除外水切密封条失效问题，但无法消除松动问题；在此基础上增加涂胶工艺可以消除松动问题但却增加了生产成本，最终采取在翻板机构的翻边镶块上烧焊增加凸点的方法，提升水切处外板与加强板的钣金结合强度，既消除了松动的质量缺陷，又节约了涂胶所增加的成本，达到提升整车质量的目的，并对后续车型的水切包边工艺设计提出建议。在翻边机构的翻板上增加铆接钉，成功解决了因为烧焊引起的表面强度下降和耐磨性下降问题，并提升了水切包边强度的均匀性和制件整体的美观性，也为后续车型同类问题的解决提供了参考方法。

Based on the analysis of quality defects such as the insufficient hemming strength caused by the hemming looseness of water cutting door and the functional failure of the external water cutting seal, the failure problem of the external water cutting seal could be eliminated by controlling the hemming thickness, but the looseness problem could not be eliminated. However, adding gluing process could eliminate the looseness problem, but the production cost increased at the same time. Finally, the looseness defect problem was solved and the increased gluing cost was saved by adding salient points on flanging inserts of flanging mechanism to increase the sheet metal combination strength between reinforcing plate and outer panel in water cutting area, and the purpose of improving the vehicle quality was achieved. Furthermore, suggestions for the process design of hemming for water cutting door were put forward for the following models, and riveting nails were added to the flanging inserts of the flanging mechanism, which successfully solved the problems of surface strength decline and wear resistance decline caused by welding and improved the uniformity of hemming strength for water cutting and the overall beauty of parts. Thus, the reference methods are provided for solving similar problems in the following models.

基金项目：

潘远安（1983-），男，硕士，高级工程师 E-mail：116521719@qq.com 通讯作者：高硕遥（1986-），女，硕士，高级工程师 E-mail：gsychinese@126.com

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