A method for manufacturing a ring-shaped member and a forging mold used for manufacturing a ring-shaped member.

摘要

PROBLEM TO BE SOLVED: To suppress a forming load of a forging process when manufacturing a ring-shaped member while using a general pressing device. SOLUTION: A material is filled up to a corner on the outer peripheral side of a forging mold 32, excess material is flowed to a center side of the forging mold 32, and a middle burr portion 10b located at the center of a third work 13 is formed in the forging mold 32. Leave a space between and and let it overhang. [Selection diagram] FIG. 5C