Spinning method, spinning machine, and shaped component

摘要

In the present spinning method using elements including: a tube material (102); a pair of chucks (101a, 101b) which hold both ends of the tube material (102); and a roller (103) having a predetermined curved shape in order to shape the tube material (102), in a state that circumferential portions at the both ends of the tube material (102) are fitted in and held by circumferential grooves (104) provided on side surfaces of the chucks (101a, 101b), the method includes a step of transferring a curved shape on a side surface of the roller (103) to a side surface of the tube material (102) by rotating the chucks (101a, 101b) which hold the tube material (102) around a first axis (J1), rotating the roller (103) around a second axis (J2), moving the rotating roller (103) in an X direction, and pressing the side surface of the roller (103) against the side surface of the tube material (102) between the rotating chucks (101a, 101b).