Study on extending the Die life of the mold in manufacturing wire cut electric discharge machined punches and die plates

와이어 컷 방전 가공한 펀치와 다이플레이트 제작에서의 수명연장에 관한 연구

  • 김세환 (공주대학교 기계자동차공학부) ;
  • 최계광 (공주대학교 기계자동차공학부)
  • Published : 2006.08.01

Abstract

W-EDM is generally used to manufacture punches and die plates from among press mold parts. Before W-EDM was used, however, punches and die plates manufactured via mechanical processing were used to manufacture products, with the die life of the mold expiring after 2,000,000~2,300,000 products have been manufactured. When the mold manufactured through W-EDM was used, however, its service life expired only after 700,000~800,000 products have been manufactured. Since this was attributed to the deformed layer formed after using W-EDM, the surfaces before and after W-EDM was used were scanned using SEM to verify the occurrence of such layer. This study sought to come up with a method of eliminating such phenomenon.

Keywords

W-EDM;SEM;Die life