Investigation of the impact of a rotationally superimposed punch stroke on the binding mechanisms of a clinched joint

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Contributors

Abstract

This paper examines the impact of a rotationally superimposed punch stroke on the binding mechanisms of clinched joints of aluminum sheets. As part of the development of a method for ensuring the versatility of clinching, an additional rotational movement of the punch was introduced as a control variable to influence friction in the mechanical joining process. The effect of rotational superimposition on the forcedisplacement curve of the clinching processes was investigated using four test variants with different kinematics. The primary objective was to evaluate the binding mechanisms that maintain the integrity of the clinched joint. To evaluate the force closure of the resulting joint, two testing methods were employed throughout the course of the research, non-destructive resistance measurement using four-wire sensing method and destructive torsion testing. A crucial factor influencing the efficacy of the process is surface cleanliness, as contaminants between joining partners can impede the effectiveness of the clinched joint. Therefore, all specimens were meticulously cleaned prior to experimentation. This method exhibits promising potential in creating clinched joints that align with the demands of flexible manufacturing environments.

Details

Original languageEnglish
Title of host publication44th Conference of the International Deep Drawing Research Group (IDDRG 2025)
Number of pages5
Publication statusPublished - 7 May 2025
Peer-reviewedYes

Publication series

SeriesMATEC Web of Conferences
Volume408
ISSN2261-236X

External IDs

ORCID /0000-0002-9086-3031/work/186621430

Keywords

Keywords

  • Joining, Sheet Metal, Tribology, Clinching