Sumitomo Wiring Systems, Limited

Jiguo Zheng

Masamichi Yamagiwa

Osamu Satou

The present invention seeks to enable a band-shaped metal wire member to be stably accommodated within a die. A die is prepared that includes a bottom die provided with a depression and a top die provided with a projection that can be arranged within the depression so as to close off a space above the depression. An inner surface of the depression includes a central die surface formed at a width-direction center of a base of the depression and a pair of curved guide die surfaces provided continuous with two sides of the central die surface and curved so as to project outward. The central die surface is formed as a flat surface or as a surface that curves more gently than the pair of curved guide die surfaces. A bonding process portion of a band-shaped metal wire member is folded in two and arranged within the depression.

Method of manufacturing band-shaped metal wire member including bonded portion

A conductive member production method is performed with use of a die that includes a first die and a second die. The first die includes a protruding portion having a recession-shaped depression formed in a leading end surface, the depression including a molding surface that is inclined so as to gradually extend toward the leading end surface side while extending laterally from the depression. The second die includes a recessed portion into which the protruding portion can be inserted. The method includes a heating step of heating a weld portion formation region that is a portion, with respect to an extending direction, of a conductive member constituted by multiple metal strands, and a pressing step in which the heated weld portion formation region is sandwiched between and pressed by the protruding portion of the first die and the recessed portion of the second die.

Production method for conductive member, conductive member, and mold

A terminal is crimped to a portion where a plurality of metal strands are welded. A conductive member is configured by a plurality of coated metal wires provided with a plurality of metal strands and with an electrically conductive sheath covering a circumference of each of the plurality of metal strands. The conductive member includes a welded portion, in which at least a portion in an extension direction of the plurality of coated metal wires is welded, and the welded portion includes an outer layer that is formed on an outer circumference side by welding the plurality of coated metal wires together, and at least a portion of the plurality of coated metal wires on an inner side of the outer layer is capable of untwining due to crimping a terminal.

Growing community of inventors

Mie, Japan

Jiguo Zheng