Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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A Study of the FEM Forming Analysis of the Al Power Forging Piston

유한요소해석을 이용한 알루미늄분말단조 피스톤 성형해석에 관한 연구

  • Kim, Ho-Yoon (Korea Institute of Science and Technology Information Supercomputer Center) ;
  • Park, Chul-Woo (Korea Institute of Science and Technology Information Supercomputer Center) ;
  • Kim, Hyun-Il (Korea Institute of Science and Technology Information Supercomputer Center) ;
  • Park, Kyung-Seo (Korea Institute of Science and Technology Information Supercomputer Center) ;
  • Kim, Young-Ho (School of Mechanical Engineering, Pusan National Univ.) ;
  • Joe, Ho-Sung (Dept. Of Mechanical Engineering at Pusan National Univ.)
  • Received : 2010.05.13
  • Accepted : 2010.07.26
  • Published : 2010.10.01
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Abstract

Powder metallurgy processes are used to form Net-Shape products and have been widely used in the production of automobile parts to improve its manufacture productivity. Powder-forging technology is being developed rapidly because of its economic merits and because of the possibility of reducing the weight of automobile parts by replacing steel parts with aluminum ones, in particular while manufacturing automotive parts. In the powder-forging process, the products manufactured by powder metallurgy are forged in order to remove any pores inside them. Powderforging technology can help expand the applications of powder metallurgy; this is possible because powder-forging technology enables the minimization of flashes, reduction of the number of stages, and possible grain refinement. At present, powder forging is widely used for manufacturing primary mechanical parts as in combination with the technology of powder forging of aluminum alloy pistons.

분말단조 공정은 정형의 자동차부품을 제작하는데 널리 이용되고 있다. 분말야금이란 금속 원료 분말을 사용하여 원하는 제품의 형태로 성형을 한 다음 적정온도에서 소결하여 필요한 금속 제품을 제조하는 기술을 말한다. 본 연구에서는 자동차 엔진의 경량화를 위한 피스톤 제작에 관한 것이다. 분말단조로 제작 되어진 엔진 피스톤의 특성을 유한요소해석을 통해서 알아보겠다. 유한요소해석은 DEFORM/3D 를 이용해서 성형성을 평가하도록 하겠다. 성형온도, 구배각도, 마찰계수의 변화에 따른 피스톤의 성형성을 알아보겠다.

Keywords

References

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