锻压技术

板材无铆钉连接技术的进展

英文标题：Development of clinching technology for sheets

作者：何玉林党菁宗鹏举

分类号：TG386

出版年,卷(期):页码：2021,46(6):8-15

摘要：

无铆钉连接技术是通过局部塑性变形而形成机械互锁的一种板料连接技术，无需额外的连接件，可以用于连接不同厚度和性能的薄板材料。由于无铆钉连接接头的强度受模具结构的影响，在一定程度上限制了该技术的应用，为了提高接头的连接强度、扩大其应用范围，国内外学者提出了一些新的改进工艺，如预制孔无铆钉连接、下板材预成形无铆钉连接、接头再成形连接、复合连接和辅助无铆钉连接等，主要对他们的工作原理、成形过程、工艺特点、连接质量及其影响因素、实际应用等进行了综合分析和评价；最后，对无铆钉连接技术的发展动向进行了展望，为无铆钉连接工艺方法的后续研究及工程领域的应用提供借鉴。

Clinching technology is a kind of sheet connection technology that forms mechanical interlock through local plastic deformation, and it is used to connect sheet with different thicknesses and properties and does not require any auxiliary parts. However, the strength of clinching joint is affected by mold structure, and the application of this technology is limited to a certain extent. Therefore, in order to improve the connection strength of joint and expand the application range of clinching technology, domestic and overseas scholars proposed some new improved technologies, such as prefabricated hole clinching, preforming clinching of lower sheet, joint reforming clinching, hybrid clinching and auxiliary clinching, and their working principle, forming process, process characteristics, connection quality and its influencing factors and their practical application were analyzed and evaluated. Finally, the development trend of clinching technology was proposed, which provided reference for the subsequent research of clinching technology and its application in engineering field.

基金项目：

国家自然科学基金资助项目(51564007)

何玉林（1980-），女，硕士，高级实验师 E-mail：hyl_2005@126.com

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