Abstract
Abstract An electromagnetic force-fit joining of carbon fiber reinforced plastic (CFRP) and aluminum tubular parts is studied. In this process, by discharging the energy stored in the pulse power into a coil, the aluminum tube is compressed to the CFRP tube and a force-fit joint is created. CFRP as a high strength material is used as inner part and an aluminum tube is assembled to it as the outer part. The assembled tubes are placed in an EMF compression coil and the joint is created. Due to the high elastic recovery of CFRP as well as a high formability of aluminum, force-fit mechanism results in a proper joint of the CFRP and aluminum tubes. Influence of different process parameters including the discharge energy, gap between inner and outer parts, workpiece thickness and usage of a supportive mandrel is investigated by the tensile test of the joint samples. The Taguchi’s design of experiments is used in order to decrease the number of experimental tests and optimum process conditions are obtained. The results indicated that the force-fit joining method can be successfully used for joining the aluminum and CFRP frames.
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