Abstract: To provide a method for manufacturing a tapered material, which can impart a tapered shape without any molding defect when a ring material made of Ni-based superalloy is subjected to a nosing process. In a nosing process to obtain a tapered material 10 by covering and pressing an entire circumference of an end portion of a ring material 10R made of Ni-based superalloy with a tapered portion 32 of an inner surface of a nosing die 30 to deform a portion of the circumferential surface of the ring material 10R into a tapered shape along the tapered inner surface portion 32 of the die 30, a nosing process initial temperature Tn (° C.) of another portion 13 of the circumferential surface of the ring material 10R where the nosing process is not applied satisfies a relationship of following Formula 1 with a solvus temperature Ts (° C.) of a precipitation phase of the Ni-based superalloy: Ts - 300 ? Tn ? Ts - 50.

Abstract: A method of effectively manufacturing various types of wire harnesses of complicated wiring structure in which a predetermined number of connectors necessary for a unit wire harness are arranged on a movable pallet. The pallet is then moved so that crimp-style terminal of one of the connectors can come to a crimp connecting position of a rotatable crimp connecting press. An end of an electric wire is fed to the crimp-style terminal at the crimp connecting position. The end of the electric wire is then connected to the terminal by the rotatable crimp connecting press. Then, the pallet is moved again, and the other end of the electric wire is connected to a crimp-style terminal of a predetermined connector by crimp connection. The series of motions are repeated until all terminals necessary for the unit wire harness are connected to the electric wires by crimp connection. According to this method, a rotatable crimp connecting press has a plurality of different crimp connecting blades.