PRESS BENDING METHOD FOR METAL PLATE AND DIE FOR PRESS BENDING

摘要

PROBLEM TO BE SOLVED: To provide a method and a die used for bending a band like metal plate while preventing a galling flaw from occurring. ;SOLUTION: In a working method in which a metal plate 3 to be bent is placed on a die 2, a punch 1 and a die 2 are relatively moved in the approaching direction and V shape bending is conducted, a recessed part having a depth D of a galling depth or more is partially arranged from a shoulder part of the die 2 to an inclined side part, the galling flaw with a die shoulder part generated on a metal plate 3 side face is partially prevented.;COPYRIGHT: (C)2001,JPO