| 摘要 |
PROBLEM TO BE SOLVED: To provide a friction pressure-welding device whereby in preheating prior to pressure-welding, temperature distribution of a pair of junction members are properly regulated by one preheating irrespective of differences in ejection amount, cross-sectional shape, quality of material and so on between both the junction members, and pressuring-welding can be achieved under ideal conditions.SOLUTION: A friction pressure-welding device comprises: gripping parts 6a, 6b which relatively moves a pair of junction members W1, W2 while pressure-contacting joint areas of the junction members W1, W2 facing to each other, thereby generating frictional heat; and a heating coil 5 which is inserted between the junction areas of the pair of junction members W1, W2 facing to each other before relative movement of both the junction members W1, W2 and pre-heats respective junction areas of the pair of junction members W1, W2 by electromagnetic induction heating. The heating coil 5 is formed by winding a shell several times in a direction along which the junction areas of the junction members W1, W2 are connected with each other while the size thereof being gradually increased from a terne 5a to a terne 5d. |
