| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method of a wire harness which integrates multiple resin members forming a housing with welding conducted by ultrasonic excitation without inserting electric wires into a horn ultrasonically vibrating and dividing the horn into multiple members.SOLUTION: A female side housing 10 of a wire harness 100 is formed by integrating a body member 2, which includes a cylindrical part 21 having an opening 210 allowing a terminal 12 to face the exterior, with a welding member 3 from which electric wires 11 are led out and welded to the body member 2. A manufacturing method of the wire harness includes a placement process where the body member 2 and the welding member 3 are placed along an axial direction of the electric wires 11 so as to face each other; a contact process where an ultrasonic horn 81 is placed in contact with the body member 2; and a welding process where the body member 2 is welded to the welding member 3 through excitation caused by the ultrasonic horn 81. In the contact process, the ultrasonic horn 81 is placed in contact with an opening side end surface 21a of the opening 210 in the body member 2. |
