Analysis of the Mechanical Interlock Sliding in Self-Pierce Riveting Joints

Kai Zeng; Xiao Cong He; Cheng Jiang Deng; Hui Yan Yang; Sen Zhou; En Liu

doi:10.4028/www.scientific.net/AMR.744.227

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Study on the Working Principle of a New Type of Power Transmission Mechanism for Gasoline Engine
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Analysis of the Mechanical Interlock Sliding in Self-Pierce Riveting Joints
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 744Analysis of the Mechanical Interlock Sliding in...

Analysis of the Mechanical Interlock Sliding in Self-Pierce Riveting Joints

Abstract:

Self-Pierce Riveting (SPR) is a new cold-press rivet technique for hard-to-weld materials joining in the field of automobile lightweight design and manufacture. The interlock slid under mechanical loading was the main induction factor to the failure of SPR joints. In this paper, the property of the interlock slid in SPR joints was studied by using digital image analysis technology and mechanical experiments. A special double-rivets specimen was designed, and simple tensile test was carried out. Several digital microscopes pointing to the region of the mechanical interlock were set up to observe and record synchronously the sequential images of the deformation of SPR during the tensile test. The process of image gray matching for the calculation of the interlock slid was described. Results showed that this method can be used to detect automatically the sliding in SPR joints and analyze the sliding qualitatively and quantitatively. And it can provide a new path for the mechanical property evaluation for this type joints.