Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Development of Flow Forming Process for Hollow Shaped Parts from Seamless Steel Tube

유동성형을 이용한 중공형 부품 제조공정 개발

  • 권용남 (한국기계연구원 부설 재료연구소 융합공정연구본부) ;
  • 김상우 (한국기계연구원 부설 재료연구소 융합공정연구본부) ;
  • 김봉준 (경창산업(주)) ;
  • 박은수 (경창산업(주)) ;
  • 차달준 (경창산업(주))
  • Received : 2011.10.17
  • Accepted : 2011.11.08
  • Published : 2011.12.01
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Abstract

Flow forming is an incremental forming process in which rollers are used to form cylindrical parts with repeated turning of both roller and starting material. Both sheet and tube can be used as the starting material. The process is highly useful for producing hollow shaped parts from a tube, with the benefit of the average strain in the final shape being significantly lower than that from a sheet material. In the present study, the flow forming process was studied and optimized for producing a hollow shaped part from seamless steel tube by both experiment and numerical analysis. Upon considering the difficulty of forming seamless steel sheet, the thickness reduction was distributed over several tool paths. In the end, an optimum process condition was attained, and the experiment verified the simulation results.

Keywords

Acknowledgement

Grant : Flow forming 및 Roll die forming에 의한 치형 부품의 경량 일체화 성형 기반 기술

References

  1. H. N. Nagarajana, H. Kotrappaa, C. Mallannaa, V. C. Venkatesha, 1981, Mechanics of Flow Forming, CIRP Ann., Vol. 30, No. 1 pp. 159-162.
  2. C. C. Wong, J. Lin, T. A. Dean, 2005 Effects of Roller Path and Geometry on the Flow Forming of Solid Cylindrical Components, J. Mater. Process. Technol., Vol. 167, No. 2-3, pp. 344-353. https://doi.org/10.1016/j.jmatprotec.2005.05.039
  3. C. C. Wong, A. Danno, K . K. Tong, M. S. Yong, 2008, Cold Rotary Forming of Thin-wall Component from Flat-disc Blank, J. Mater. Process. Technol., Vol. 208, No. 1-3, pp. 53-62. https://doi.org/10.1016/j.jmatprotec.2007.12.123
  4. K. M. Rajan, P. U. Deshpande, K. Narasimhan, 2002, Effect of Heat Treatment of Preform on the Mechanical Properties of Flow Formed AISI 4130 Steel Tubes-a theoretical and experimental assessment, J. Mater. Process. Technol., Vol. 125-126, pp. 503- 511. https://doi.org/10.1016/S0924-0136(02)00305-9
  5. P. Groche, David Fritsche, 2006, Application and Modeling of Flow Forming Manufacturing Processes for Internally Geared Wheel, Int. J. Mach. Tools Manuf, Vol. 46, No. 11, pp. 1261-1265. https://doi.org/10.1016/j.ijmachtools.2006.01.016
  6. S. I. Hong, S. H. Rhee and. S. J. Yun, 1998, A Study on the Neck-in Process by Flow-forming, Metals & Materials, Vol. 4, No. 4, pp. 895-898 https://doi.org/10.1007/BF03026419
  7. J. N. Park, D. H. Kim, B. M. Kim, 2002, Experiemental Investigation on the Flow Control of Hub Clutch for Automotive, Trans. Mater. Process., Vol. 11, No. 5, pp. 430-438. https://doi.org/10.5228/KSPP.2002.11.5.430

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