Elastomers and Composites

The Rubber Society of Korea (한국고무학회)
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Physical Test and Finite Element Analysis of Elastomer for Steel Rack Tube Forming

일체형 랙 튜브 성형을 위한 고 탄성체 물성시험과 유한요소 해석

  • Woo, C.S. (Nano Mechanical System Research Center, Korea Institute of Machinery & Materials) ;
  • Park, H.S. (Nano Mechanical System Research Center, Korea Institute of Machinery & Materials) ;
  • Lee, G.A. (Manufacturing process Research Division, Korea Institute of Industrial technology)
  • 우창수 (한국기계연구원 나노기계연구본부) ;
  • 박현성 (한국기계연구원 나노기계연구본부) ;
  • 이근안 (한국생산기술연구원 생산기술연구본부)
  • Published : 2008.09.30
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Abstract

Rubber-pad forming process for materials such as metal in which portions of the die which act upon the material is composed of a natural or synthetic rubber or elastomer material. This makes the rubber pad forming process relatively cheap and flexible, high accuracy for small product series in particular. In this study, we carried out the physical test and finite element analysis of elastomer such as natural rubber and urethane for steel rack rube forming. The non-linear property of elastomer which are described as strain energy function are important parameter to design and evaluate of elastomer component. These are determined by material tests which are uni-axial tension and bi-axial tension. This study is concerned with simulation and investigation of the significant parameters associated with this process.

고무나 우레탄과 같은 고 탄성력을 이용하여 튜브를 임의의 형상으로 성형하는 고 탄성체 성형방법은 타 공정에 비해 높은 치수 정밀도와 생산 공정의 단축, 에너지 절감 등을 기대할 수 있는 차세대 성형기술이라 할 수 있다. 본 연구에서는 탄성체에 대한 소재 물성시험과 특성평가를 통해 고 탄성체 성형에 적합한 소재를 선정하고 시험으로 얻어진 응력-변형률을 이용하여 비선형 재료상수를 결정하여 성형해석에 필요한 물성 데이터를 확보하였다. 또한, 랙튜브에 대한 유한요소해석을 통해 탄성체의 두께변화에 따른 공정변수의 영향을 검토하였다.

Keywords

References

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