METHOD, MACHINE AND TOOL FOR MANUFACTURING FLANGE-LIKE PRODUCT OR FLANGE IN CYLINDRICAL INTERMEDIATE PRODUCT

摘要

PROBLEM TO BE SOLVED: To manufacture a large number of flange-like products and flanges in cylindrical intermediate products at small manufacturing cost and operation cost. SOLUTION: The intermediate product is received in a lower tool 4 disposed in a irrotational feed unit 16 having a flange outline, fed to a rotating rolling head 19 of an upper tool 2, and a flange 34 is formed by performing the cold rolling of a deformation area of the intermediate product between the upper tool 2 and the lower tool 4.