Abstract
This research work used a preheated clinching process for joining aluminum alloy 5052-H32 (Al) and carbon fiber-reinforced thermoplastic (CFRTP) sheets. The preheated and softened CFRTP sheets successfully undergo the excessive compression and bending in the process. Al and CFRTP sheets with a thickness of 1.6 mm thick were used to make Al/CFRTP clinch joints in lap-shear (LS) specimens. Effects of joining force, punch design, and die design on mechanical properties of Al/CFRTP clinch joints were investigated by quasi-static tensile tests and metallographic micrographs. An appropriate setup for the Al/CFRTP clinching process was obtained. Then, a complete fatigue test for Al/CFRTP dissimilar clinching joints was conducted to investigate the fatigue properties of Al/CFRTP clinch joints. The fatigue data were recorded, and the failure modes were analyzed and discussed.
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