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ABSTRACT
The joining of three-layer AL5052-H32 sheets with the square and round clinching process was studied by experimental means. Two 1.5 mm thick and one 2 mm thick AL5052-H32 sheets with three sheet sequences were joined by the square and round clinching process, respectively. The results showed that the square tools can successfully join three sheets in all three sheet orders, while the round tools can effectively connect three sheets only when the thick sheet is at the bottom. Moreover, the strength of the round joints is generally lower than that of the square joints. The square three-layer joint with the thick top sheet achieves high strength at both two mechanical interlocks.
Disclosure statement
No potential conflict of interest was reported by the authors.
Additional information
Funding
This research work is supported by the National Natural Science Foundation of China (grant number 51805416), Young Elite Scientists Sponsorship Program by CAST (grant number 2019QNRC001), Hunan Provincial Natural Science Foundation for Excellent Young Scholars (grant number 2021JJ20059), and Huxiang High-Level Talent Gathering Project of Hunan Province (grant number 2019RS1002).