METHOD OF THICKENING AND FORMING BY SPINNING AND DEVICE FOR THICKENING AND FORMING BY SPINNING

摘要

A spinning thickening forming method is a method of, while rotating a plate (8) including a center portion (83) fixed to a fixing jig (3), increasing a thickness of a peripheral portion (81) of the plate (8). Specifically, while locally heating the peripheral portion (81) of the plate (8) such that at least a portion (82) of the plate (8) which is adjacent to the fixing jig (3) maintains stiffness, a forming roller (6) is pressed against the peripheral portion (81) of the plate (8) to compress the peripheral portion (81) in at least a direction perpendicular to a thickness direction of the peripheral portion (81).