BENDING METHOD, BENDING MACHINE AND WARM DIE UNIT

摘要

PROBLEM TO BE SOLVED: To provide a bending method that facilitates reduction in the bending radius of a bending part of a workpiece W while cracks and fractures are prevented from occurring in the bending part, even if bending is performed on a workpiece composed of a hard-to-work material such as magnesium or stainless steel. SOLUTION: The bending machine is designed to have a lower table 13 installed in the lower part of the main body frame, an upper table 17 installed vertically movably on the main body frame, a heater 29 that is installed vertically movably in the center of the V groove 5a of a lower die 5 and that is in contact with the bending part Wa of the workpiece W to heat the part Wa, and a pressing member 33 capable of pressing the heater upward. COPYRIGHT: (C)2004,JPO