Abstract
Effects of processing parameters on preheated (heat-assisted) clinching process to join aluminum alloy 5052-H32 (AA5052) and thermoplastic carbon-fiber-reinforced-plastic (TP-CFRP) sheets for cross-tension (CT) specimens were first studied. Preheating was critical since brittle TP-CFRP could be softened to avoid fracturing or cracking during clinching process. Four processing parameters, including punching force, die depth, heating mode, and heating temperature, were considered. Quasi-static tests and microscope observations were taken to evaluate AA5052/TP-CFRP clinch joints in CT specimens and determine appropriate processing parameters for fatigue tests. Finally, fatigue data and failure mode of clinch joints in CT specimens were obtained and discussed.
Highlights
The greenhouse gases, such as carbon oxide, emitted from vehicles have significant contributions on the global warming and climate change
Lin et al [25,26] studied the effects of processing parameters, such as punching force, die geometry, and punch geometry, on the preheated clinching process of aluminum alloy 5052-H32 (AA5052) and thermoplastic carbon-fiber-reinforced-plastic (TP-CFRP) sheets for lap-shear (LS) specimens experimentally
That of AA5052/TP-CFRP clinch joints subjected to the processing parameters for LS specimens may not be suitable for cross-tension (CT) specimens opening dominant loads, which are important in the practical applications, has not been studied
Summary
The greenhouse gases, such as carbon oxide, emitted from vehicles have significant contributions on the global warming and climate change. Lin et al [25,26] studied the effects of processing parameters, such as punching force, die geometry, and punch geometry, on the preheated clinching process of AA5052 and TP-CFRP sheets for lap-shear (LS) specimens experimentally. That of AA5052/TP-CFRP clinch joints subjected to the processing parameters for LS specimens may not be suitable for cross-tension (CT) specimens opening dominant loads, which are important in the practical applications, has not been studied. Processing parameters on the preheated (heat-assisted) clinching process of AA5052 and TP-CFRP specimens since their sizes and loading conditions are quite different. Quasi-static tensile tests, fatigue tensile preheating is studied here since the specimen size may significantly affect the heat tests, and microscopic observations are conducted to evaluate the mechanical performance of conduction and specimen temperature during the clinching process. Fatigue data and failure modesand of clinch joints in CT specimens are obtained and discussed
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