PROBLEM TO BE SOLVED: To provide a manufacturing method of a metal tubule having a flexure part having little dispersion of process tolerance of the flexure part and a crush part in comparison with the case where the metal tubule is bent and crushed in the state where nothing is arranged inside the metal tubule.SOLUTION: In a manufacturing method of a metal tubule having a flexure part, a part of such an arrangement part that a plurality of wires are arranged inside the metal tubule is bent to form the flexure part, and a part on the at least one side to the part of the arrangement part is crushed to form a crush part, and the plurality of wires are removed from inside.SELECTED DRAWING: Figure 2HCOPYRIGHT: (C)2018,JPO&INPIT【課題】本発明は、金属細管の内部に何も配置していない状態で金属細管を曲げて潰す場合に比べて、曲げ部及び潰し部の加工精度のばらつきが小さい、曲げ部を有する金属細管の製造方法の提供を目的とする。【解決手段】本発明の曲げ部を有する金属細管の製造方法は、金属細管の内部に複数本の線材を配置し、前記金属細管における前記内部に前記複数本の線材が配置されている配置部分の一部を曲げて曲げ部を形成し、前記配置部分における前記一部に対する少なくとも一方側の部分を潰して潰し部を形成し、前記内部から前記複数本の線材を除く。【選択図】図2H
