US Patent Issued to JFE STEEL on Nov. 18 for "Damage evaluation device and damage evaluation method for press-forming die" (Japanese Inventor)

ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,472,715, issued on Nov. 18, was assigned to JFE STEEL Corp. (Tokyo).

"Damage evaluation device and damage evaluation method for press-forming die" was invented by Hiroto Miyake (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "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 shea...