SHEARING METHOD OF BAR MATERIAL AND ITS DIE

摘要

PROBLEM TO BE SOLVED: To provide a shearing method, and its die (a device) superior in an end surface quality by restraining generation of a crack on an end surface of a bar material. SOLUTION: The bar material is received from below by the die, and the material supply side is supported by a work presser (a stripper). When shearing by a punch from a bar material side part by allowing a stopper to abut on this bar material end surface, compressive stress is generated in the longitudinal direction of the bar material. COPYRIGHT: (C)2005,JPO&NCIPI