Transactions of Materials and Heat Treatment

Title：Development of clinching technology for sheets

Authors：

Unit：

KeyWords： clinching prefabricated hole preforming joint reforming hybrid connection connection strength

ClassificationCode：TG386

year,vol(issue):pagenumber：2021,46(6):8-15

Abstract：

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.

Funds：

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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