소성∙가공 (Transactions of Materials Processing)

  • 제20권4호
  • /
  • Pages.291-295
  • /
  • 2011
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  • 1225-696X(pISSN)
  • /
  • 2287-6359(eISSN)
한국소성∙가공학회 (The Korean Society for Technology of Plasticity and materials processing)
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재료이용률 향상을 위한 인젝터 하우징의 정밀냉간단조공정 유한요소해석

Finite Element Analysis of Precision Cold Forging Process to Improve Material Utilization for Injector Housing

  • 김현민 (공주대학교 일반대학원 기계자동차공학부 기계공학) ;
  • 박용복 (공주대학교 기계자동차공학부 기계설계공학) ;
  • 박성영 (공주대학교 기계자동차공학부 자동차공학)
  • 투고 : 2011.02.17
  • 심사 : 2011.06.21
  • 발행 : 2011.07.01
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초록

The injector housing has two functions, namely, positioning the injector and protecting it from coolant. The conventional manufacturing process of the injector housing by machining has some drawbacks such as considerable loss of material and environmental pollution caused by excessive use of cutting oil. In this paper, precision cold forging is proposed as a new manufacturing process in order to improve these issues. A numerical study was conducted to compute the metal flow, strain, load and other process variables using DEFORM-2D, a finite element analysis(FEA) code for metal forming. Two process methods were investigated and optimal conditions were computed with the FEA code. A prototype was manufactured from the optimal process method and the metal flow and hardness were obtained from the prototype.

키워드

참고문헌

  1. D. J. Kim, B. M. Kim, 1999, Process Design to Prevent Internal & External Defects of Cold Extruded Products with Double Ribs, Trans. Mater. Process., Vol. 8, No. 6, pp. 312-619.
  2. Y. S. Chang, J. H. Choi, B. D. Ko, H. Y. Lee, B. B. Hwang, 2000, A Study on the Process Sequence Design of a Short-Neck Flange, J. Kor. Soc. Process. Engineering., Vol. 17, No. 6, pp. 127-134.
  3. DEFORM User's Manual V9.1, Scientific Forming Technologies Coperation.
  4. D. C. Ko, B. M. Kim, J. C. Choi, S. W. Oh, 1996, Process Sequence Design in Cold Forged Part of Hub, Trans. Kor. Soc. Mech. Eng. Vol. 20, No. 11, pp. 3387-3397.
  5. K. H. Park, H. T. Yeo, K. D. Hur, 2004, Forming Process Design of Fuel Injector Housing by Response Surface Method, Proc. Kor. Soc. Tech. Plast. Conf., pp. 311-314.