Damage evaluation device and damage evaluation method for press-forming die

Abstract

A damage evaluation device for a press-forming die includes: evaluation dies installed in a pressing device configured to press-form a metal material; and an observation device configured to observe damage behavior of a die steel material and surface coating constituting the evaluation dies. The evaluation dies include: a perforating unit configured to form a hole in the metal material; a first shearing unit configured to shear the metal material in which the hole is formed into a predetermined metal component shape; and a second shearing unit configured to separate a metal component from the metal material, and dies of the perforating unit, the first shearing unit and the second shearing unit are formed of the die steel material and have a structure that enables replacement with another die made of predetermined material and applied with predetermined surface coating treatment.

Dependencies are inferred from the claim text.