Design & Manufacturing

Korean Society of Die & Mold Engineering (한국금형공학회)
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Analytical evaluation and study on the springback according to the cross sectional form of 1.2GPa ultra high strength steel plate

1.2GPa급 초고강도강판의 단면 형태에 따른 스프링백에 관한 해석적 평가 및 연구

  • Lee, Dong-Hwan (Daewoo industry, Inc) ;
  • Han, Seong-Ryeol (Department of Metal Mold Design Engineering, Kongju National University) ;
  • Lee, Chun-Kyu (Department of Metal Mold Design Engineering, Kongju National University)
  • 이동환 (대우공업(주)) ;
  • 한성렬 (공주대학교 금형설계공학과) ;
  • 이춘규 (공주대학교 금형설계공학과)
  • Received : 2019.12.09
  • Accepted : 2019.12.31
  • Published : 2019.12.31
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Abstract

Currently, studies on weight reduction and fuel efficiency increase are the most important topics in the automotive industry and many studies are under way. Among them, weight reduction is the best way to raise fuel efficiency and solve environmental pollution and resource depletion. Materials such as aluminum, magnesium and carbon curing materials can be found in lightweight materials. Among these, research on improvement of bonding technology and manufacturing method of materials and improvement of material properties through study of ultrahigh strength steel sheet is expected to be the biggest part of material weight reduction. As the strength of the ultra hight strength steel sheet increases during forming, it is difficult to obtain the dimensional accuracy as the elastic restoring force increases compared to the hardness or high strength steel sheet. It is known that the spring back phenomenon is affected by various factors depending on the raw material and processing process. We have conducted analytical evaluations and studies to analyze the springback that occurs according to the cross-sectional shape of the ultra high tensile steel sheet.

Keywords

References

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