MANUFACTURE OF METAL FITTING FOR HOSE, METAL FITTING FOR HOSE, AND BRAKE HOSE

摘要

PROBLEM TO BE SOLVED: To reduce the cost and to improve the reliability by a manufacturing method mainly comprising the plastic working, and to facilitate the plastic working of a nipple part. SOLUTION: A metal fitting 3 for a hose provided with a nipple part having a head part 2 to be connected to a counter equipment and shaft holes 11, 12 to be pierced in the head part 2 is manufactured. After a part corresponding to the head part 2 is integrated with a part corresponding to the nipple part 5, the shaft holes 11,12 are formed in at least two processes of the plastic working on the nipple part side and the punching on the head part side.