Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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A Study on Forging Effect of Cup-Shaped Powder Forging Product According to the Shape of Preforms

컵형상 분말단조품의 예비성형체 형상에 따른 단조효과에 관한 연구

  • Park, Jong-Ok (Dept.of Precision Mechanical Engineering, Graduate School of Busan National University) ;
  • Kim, Young-Ho (Mechanical Technology Research Center, Busan National University) ;
  • Cho, Jin-Rae (Mechanical Technology Research Center, Busan National University) ;
  • Lee, Jong-Heun (Kyungnam College of Information & Technology)
  • 박종옥 (부산대학교 대학원 정밀기계공학과) ;
  • 김영호 (부산대학교 기계기술연구소) ;
  • 조진래 (부산대학교 기계기술연구소) ;
  • 이종헌 (경남정보대학 기계시스템학부)
  • Published : 2000.11.01
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Abstract

The purpose of this paper is to compare the forging effects according th the shape of preforms of cup shaped powder forging product, and extend the application of powder forging technology to more complicated cup-shaped products like pistons. In order to this, preforms are provided by compacting, sintering, and machining in various shapes, then forged to final shape of products. The workability for sintered aluminium powder material is examined. Density and strain loci of forged products are compared, and the most effective shape of preform is proposed. The preform for a piston of 50mm in diameter is provided and hot forged to final product.

Keywords

References

  1. 이정환, 이상용, 이영선, '자동차 부품의 정밀단조 기술', Proc. of '98 Korean-German Technomart for Automotive Technologies, PNU, pp. 275-288, Sept. 22-23, 1998
  2. Downey, C. L., Kuhn, H. A., 'Designing P/M Preforms for Forging Axisymmetric Parts,' International Journal of Powder Metallurgy & Powder Technology, Vol. 11, No. 4, pp. 128-135, 1975
  3. Iwata, Y., Mae, S., Urai, Y., Tsunoda, T., 'Aluminium Alloy having an Excellent Forgibility,' United States Patent[19], P. N. 4889557, Dec. 26, 1989
  4. Lee, J. H., Lee, Y. S., Chung, H. S., 'Development of Bevel Gear by Powder Forging Process,' Journal of Korean Powder Metallurgy Institute, Vol. 4, No. 4, pp. 258-267, 1997
  5. Danninger, H., 'Sintered Aluminium camshaft belt pulleys,' M. P. R., pp.46-52, June, 1993
  6. 서상기, 박원욱, 이강율, 임헌일, 'P/M법에 의한 알루미늄 소결제품의 제조공정 개발', 한국기계 연구소, pp. 24-29
  7. 김문일, 이동희, '粉末治金 . 燒結機構', 청문각, pp.229-239, 1998
  8. 日本粉末治金工業會, '燒結機械部品-その設計と製造-', 技術書院, pp. 33-47, 1987
  9. 한흥남, 오규환, 이동녕, '다공성 소결금속의 단조한계해석', 단조기술의 진보, 제2회 단조심포지움, pp. 64-71, 1995
  10. Kuhn, H. A., Ferguson, B. L., 'Powder Forging,' Metal Powder Industries Federation, pp. 92-99, 1990