Influence of punch face angle and reduction on flow mode in backward and combined radial backward extrusion process

详细信息    查看全文

• 作者：Jeong-hoon Noh ; Beong Bok Hwang ; Ho Yong Lee
• 关键词：sliding ; friction ; metals ; extrusion ; deformation ; interface
• 刊名：Metals and Materials International
• 出版年：2015
• 出版时间：November 2015
• 年：2015
• 卷：21
• 期：6
• 页码：1091-1100
• 全文大小：1,014 KB
• 参考文献：1.J. H. Ok and B. B. Hwang, Mater. Sci. Forum 519鈥?21, 931 (2006).CrossRef
  2.K. H. Min, J. M. Seo, H. S. Koo, V. R. Jayasekara, S. H. Tak, I. C. Lee, and B. B. Hwang, Trans. Mater. Process. 16, 521 (2007).CrossRef
  3.A. Danno, K. Abe, and F. Nonoyama, J. Jap. Soc. Technol. Plastic. 24, 213 (1983).
  4.H. Y. Lee, J. H. Noh, and B. B. Hwang, Tribol. Int. 64, 215 (2013).CrossRef
  5.K. H. Min, V. R. Jayasekara, B. B. Hwang, and D. H. Jang, Trans. Mater. Process. 16, 582 (2007).CrossRef
  6.S. H. Park, H. S. Kim, and B. S. You, Korean J. Met. Mater. 51, 637 (2013).
  7.S. H. Park, H. S. Kim, and B. S. You, Met. Mater. Int. 20, 291 (2014).CrossRef
  8.American Society for Metals, Source Book on Cold Forming, p.16, The Periodical Publication Department American Society for Metals, Ohio, USA (1975).
  9.T. Mizuno, Y. Kojima, K. Kitamura, and W. Zhu, J. Jap. Soc. Technol. Plastic. 25, 929 (1984).
  10.T. Mizuno, W. Zhu, Y. Kojima, and K. Sugimoto, J. Jap. Soc. Technol. Plastic. 28, 1060 (1987).
  11.N. Bay, S. Lassen, K. B. Pedersen, and V. Maegaard, Ann. CIRP. 40, 239 (1991).CrossRef
  12.B. Bennani and N. Bay, J. Mater. Process. Technol. 61, 275 (1996).CrossRef
  13.J. H. Noh, M. T. Kim, and B. B. Hwang, J. Mech. Sci. Technol. 24, 1611 (2010).CrossRef
  14.J. H. Noh, K. H. Min, and B. B. Hwang, Tribol. Int. 44, 947 (2011).CrossRef
  15.J. H. Noh and B. B. Hwang, Steel Res. Int. 81, 450 (2010).
  16.Scientific Forming Technologies Corporation, Deform 2-D TM User Manuals, pp.4鈥?7, Scientific Forming Technologies Corporations Inc., Ohio, USA (2004).
  17.C. H. Lee and S. Kobayashi, J. Manuf. Sci. Eng. 95, 865 (1973).
  18.Y. P. Song, W. K. Wang, D. S. Gao, E. Y. Yoon, D. J. Lee, and H. S. Kim, Met. Mater. Int. 20, 445 (2014).CrossRef
  19.J. H. Noh and B. B. Hwang, Met. Mater. Int. 19, 1193 (2013).CrossRef
  20.G. Ngaile, H. Saiki, L. Ruan and Y. Marumo, Wear 262, 684 (2007).CrossRef
  21.B. B. Hwang, J. H. Shim, J. M. Seo, H. S. Koo, J. H. Ok, Y. H. Lee, G. M. Lee, K. H. Min, and H. J. Choi, Mater. Sci. Forum 519鈥?21, 949 (2006).CrossRef
  22.W. Osen, Proc. Adv. Technol. Plastic. Conf. (eds. K. Lange), p.575, Springer, Stuttgart, West Germany (1987).
  23.D. H. Jang, J. H. Ok, G. M. Lee, and B. B. Hwang, Mater. Sci. Forum 519鈥?21, 955 (2006).CrossRef
  24.B. D. Ko, H. J. Choi, D. H. Jang, J. Y. Lim, and B. B. Hwang, Trans. Mater. Process. 12, 251 (2003).CrossRef
  
• 作者单位：Jeong-hoon Noh (1)
  Beong Bok Hwang (1)
  Ho Yong Lee (2)
  
  1. Department of Mechanical Engineering, Inha University, 100 Inha-ro, Nam-gu, Incheon, 402-751, Korea
  2. Department of Mechanical Engineering, Dongguk University, 30 Pildong-ro 1-gil, Jung-gu, Seoul, 100-715, Korea
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Metallic Materials
  Operating Procedures and Materials Treatment
  
• 出版者：The Korean Institute of Metals and Materials, co-published with Springer Netherlands
• ISSN：2005-4149

文摘

This paper is concerned with the analysis on the flow mode which determines lubrication limit such as stiction onto or sliding over punch face. The main goal of this study is to examine the influence of geometrical parameters such as punch face angle, reduction in area, and the gap height in radial direction in backward and combined radial-backward extrusion process on the flow mode and surface stresses such as sliding velocity, sliding distance and surface expansion. Annealed steel 17Cr3 was selected as a model material, a rigid-plastic material, for simulation, which was conducted using a commercially available FEA tool, Deform 2-D, programmed in a rigid plasticity theory. Change of flow mode during deformation was also investigated to find under which conditions of process parameter adopted the flow mode changes from stiction to transition or transition to sliding. In this paper, sliding velocities were quantitatively analyzed to determine the flow mode. Keywords sliding friction metals extrusion deformation interface