DIE DEVICE FOR SWAGING WORK AND PRODUCT WORKED WITH THIS DIE DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a die device for swaging work with which a large diameter part and a small diameter part can integrally be worked with an extremely simple method, a product obtained by integrally working the large diameter part and the small diameter part. SOLUTION: The die device for swinging work characterized in that the device is constituted of one set of dies provided with a working surfaces 12 which rotate and reciprocatively move in the radius direction so as to face the center and work a stock 20 for product disposed at the center by hitting from the outer periphery and the working surfaces 12 is composed of a plurality of different curvatures. The working surfaces 12 composed of a plurality of different curvatures, are abutted on the stock for product according to the progressing state of the working so as to work the stock for product by hitting till reaching a prescribed diameter.