For the curved compression mods of ASSYMETRICAL, for ASSYMETRICAL bendings and the metal mould device of bending process method

摘要

A first bending block 38 working with a first punch tip surface 18f for a punch mold 18 for bending one side of a part S corresponding to a bending line in a workpiece W to a first curvature angle θ1 is provided so as to be movable vertically via a plurality of guide bolts 40 in an accommodation recess 36 of a die mold base 28. A second bending block 44 working with a second punch tip surface 18s of a punch mold 18 for bending the other side of the part S corresponding to the bending line in the workpiece W to a second curvature angle θ2 is provided on the back surface side of the first bending block 38 in the accommodation recess 36 of the die mold base 28. A recessed processing step 58 for progress of the tip part of the punch mold 18 is formed on the edge of the back surface side of the upper surface of the first bending block 38.