| 摘要 |
When a metal member (42) and a resin member (41) are to be joined using a fastener (10) made of metal, damage to the resin member is made less liable to occur, and joining is effected simply and securely, by providing: a cylindrical nosepiece (30) made from an insulator; a high-frequency induction coil (36) which is wound around the nosepiece (30); an electrode punch (31) comprising an electrical conductor, for pushing the fastener (10) into the resin member; a chopper device (52) which converts an alternating current into a high-frequency current; a high-frequency induction output device (56) which causes a high-frequency current to flow through the high-frequency induction coil; a resistance welding output device (55) which causes a welding current to flow between the electrode punch (31) and the metal member; a contact detecting device (54) which detects whether a distal end portion of the fastener that has been pushed into the resin member has come into contact with the metal member; a switching device (53) which is switched, on the basis of the detection result from the contact detecting device (54), in such a way that either the high-frequency induction output device or the resistance welding output device is connected; and a control device (51). |
