Study for Joining between GFRP and A6061 Sheets by Punching Rivet Method

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  • 打抜きリベット締結法によるGFRP板とA6061板の異材継手に関する研究

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<p>Productivity of general rivet method has weak point because drilling of a sheet is necessary. In order to solve for this problem, the punching rivet method have been proposed. In the punching rivet method, drilling is unnecessary in advance, and since the punching and joining of the sheets are carried out at the same time, the production efficiency is good. In this study, the joint is made using a rivet and a rivet holder, and the GFRP and the A6061 sheets were joined using some shapes of rivets and rivet holders. After joinning, the cross sections of the joints were observed, and the deformed conditions of the rivet were examined. For the GFRP sheet and the rivet joints, tensile tests were carried out to compare their strength. From experimental results, it was possible to join the GFRP and A6061 sheets by punching rivet method. The strength of the riveted joint was higher than that of the GFRP sheet because of the seating pressure working on the sheet surface between the rivet and the rivet holder. Though the shapes of rivet and rivet holder were changed, the strength of all joints was almost same. The cause due to the fact that the deformed shapes of the rivet shafts were almost same, when the cross sections of joints were observed, Therefore, it is necessary to consider the rivet shape that the tip of the rivet shaft deform widely.</p>

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