Stamping mold integrated die insert crack prevention method

摘要

The present invention relates to an integrated die insert crack preventing method of a stamping die, and in the integrated die insert (10) of the stamping die having a plurality of spaces (11a) (11b) (11c) formed on the center side, the space portion Fine holes 14 are formed on the linear surface between the outer edges of the two space portions 11a and 11c and the outer ends of the die inserts 10a, 11b and 11c, respectively. It is to prevent the progress of the crack due to the punching force applied.