Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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A study on wear damage of SKD11 steel material for a cutting mold jig

SKD11 절단금형치구용 소재의 마모손상에 관한 연구

  • Nam, Ki-Woo (Department of Materials Science and Engineering, Pukyong National University) ;
  • Kim, Cheol-Su (UR Interdisciplinary Program of Mechanical Engineering, Pukyong National University) ;
  • Ahn, Seok-Hwan (Department of Mechatronics, Jungwon University)
  • 남기우 (부경대학교 재료공학과) ;
  • 김철수 (부경대학교 학연협동기계공학) ;
  • 안석환 (중원대학교 메카트로닉스학과)
  • Received : 2016.02.05
  • Accepted : 2016.09.26
  • Published : 2016.10.31
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Abstract

This study is on wear damage of the material for a molding machine that be used at finally cutting of metal beam made in roll forming process of vehicle bump beam process line. SKD11 steel was used with the material for cutting mold jig. In the cutting mold jig, Ti diffusion heat treatment after vacuum heat treatment was carried out for upgrade of surface hardness and anti-wear. Also, the heat treatments by various methods were performed to compare the wear damage degree against above the existing heat treatment. Wear loss and friction coefficient were obtained from wear test. And, micro Vickers hardness values were compared with damaged parts or not of cutting mold jig. Micro Vickers hardness value appeared higher at the undamaged part by Ti diffusion heat treatment. The micro Vickers hardness well followed a two-parameter Weibull probability distribution.

Keywords

References

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