MANUFACTURING METHOD OF COIL SEGMENT
To suppress an increase in a resistance value of a coil segment.SOLUTION: A manufacturing method of a coil segment includes the steps of: bending a coil wire and forming a bent portion; and compressing metal powder placed in the bent portion and plastic flow-joining the metal powder to the bent port...
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| Sprache: | eng ; jpn |
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| Zusammenfassung: | To suppress an increase in a resistance value of a coil segment.SOLUTION: A manufacturing method of a coil segment includes the steps of: bending a coil wire and forming a bent portion; and compressing metal powder placed in the bent portion and plastic flow-joining the metal powder to the bent portion. A cross-sectional area of the bent portion can sufficiently be secured, an increase in electrical resistance is prevented and electricity consumption can be improved by forming an adhesive part in the bent portion of the coil wire. Since processing is performed without heating, oxidation of the coil wire can be prevented.SELECTED DRAWING: Figure 1
【課題】コイルセグメントの抵抗値の増大を抑制する。【解決手段】実施形態に係るコイルセグメントの製造方法は、コイル線を曲げて、曲げ部分を形成する工程と、前記曲げ部分に金属粉を配置した状態で圧縮して、前記金属粉を前記曲げ部分に塑性流動結合させる工程とを含む。コイル線の曲げ部分に凝着部を形成することで、曲げ部分の断面積を十分確保することができ、電気抵抗の増大を防ぎ、電費を向上させることが可能となる。また、非加熱で加工されるため、コイル線の酸化を防ぐことができる。【選択図】図１ |
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