MANUFACTURING METHOD FOR HOLLOW PIPE COMPONENT

To provide a manufacturing method for a hollow pipe component that is able to easily improve manufacturing efficiency.SOLUTION: A manufacturing method for a hollow pipe component, according to an embodiment, has a laminate formation and preparation step, a joining step, a cutting step and a molding step and manufactures a hollow pipe component from the laminate in which a first metal plate portion and a second metal plate portion are stacked. In the laminate formation step, a laminate is formed, in which the first metal plate-like portion and a second metal plate-like portion are stacked. In a joining step, a joined body is formed, in which the first metal plate-like portion and second metal plate-like portion of the laminate are joined through friction agitation at a friction agitation joining portion, In the cutting process, the joined body is cut to form a cut body including at least a part of the friction agitation joining portion. In the molding process, a molding process is performed by inserting a molding jig between the first metal plate-like portion and the second metal plate-like portion, other than the friction agitation joining portion, of the cut body, thereby forming the cut body into a hollow pipe component.SELECTED DRAWING: Figure 1 【課題】製造効率の向上を容易に実現可能な中空管部品の製造方法を提供する。【解決手段】実施形態に係る中空管部品の製造方法は、積層体形成準備工程と接合工程と切断工程と成形工程とを有し、第１の金属板状部と第２の金属板状部とが重ね合った積層体から中空管部品を製造する。積層体形成工程では、第１の金属板状部と第２の金属板状部とを重ね合わせた積層体を形成する。接合工程では、積層体の第１の金属板状部と第２の金属板状部とを摩擦撹拌接合部で摩擦撹拌接合して摩擦撹拌接合部で接合された接合体を形成する。切断工程では、接合体を切断して摩擦撹拌接合部の少なくとも一部を含む切断体を形成する。成形工程では、切断体の摩擦撹拌接合部以外の第１の金属板状部と第２の金属板状部との間に成形治具を挿入して成形加工して、切断体を中空管部品に形成する。【選択図】図１