DIE AND METHOD FOR CONTINUOUSLY DRAWING SHEAR, CAPABLE OF ENHANCING PHYSICAL PROPERTY BY THE INCREASE OF HARDNESS AND STRENGTH AFTER THE PROCESSING OF A METALLIC MATERIAL

摘要

PURPOSE: A die for continuously drawing shear is provided to enhance physical property by the increase of hardness and strength after the processing of a metallic material.;CONSTITUTION: A die for continuously drawing shear comprises a first channel(110) and a second channel(120). The first channel is formed in a manner that a metallic material is continuously added in a drawing method. The first channel has a given shape and a given cross- sectional area, in a length direction. One end of the second channel is connected to the first channel to be bent in a state of crossing at a given angle and the cross-sectional area of the second channel decreases toward the end in a length direction. The metallic material moves along a part, at which the first and second channels cross, and thus shear deformation occurs. Drawing deformation occurs as the metallic material moves through a part of a decreased cross-sectional area.;COPYRIGHT KIPO 2011