Browse > Article
http://dx.doi.org/10.5228/KSPP.2010.19.4.253

Experimental Study on Non-Axisymmetric Rectangular Cup using Multi-Stage Deep Drawing Process  

Ku, T.W. (부산대학교 항공우주공학과)
Park, J.W. (부산대학교 대학원 항공우주공학과)
Heo, S.C. (부산대학교 대학원 항공우주공학과)
Kang, B.S. (부산대학교 항공우주공학과)
Publication Information
Transactions of Materials Processing / v.19, no.4, 2010 , pp. 253-262 More about this Journal
Abstract
For multi-stage deep drawing process including ironing operation and biaxial forming in this study, tool developments are achieved, and the developed tool sets are applied to experimental investigations. In process and tool designs, a contact condition between intermediate blank and lower die is considered as the sequential one. In this study, the material used is cold-rolled thin sheet (SPCE) with the initial thickness of 0.4mm. From the experimental approaches, several failures such as tearing, localized thickening and thinning, are observed. To solve these failures, the contact surface on the lower die is modified. As the experimental results by applying the modified lower die, it is investigated that the failures are not occurred, and the excessive deformation behavior due to the thinning and thickening effects are decreased. Furthermore, the thickness distributions on the major axis and the minor axis of each intermediate blank are investigated to be already satisfied the target (ironing) thickness, respectively. By this systematic approach, it is confirmed that the experimental results show good agreements with the designed and required configuration of each deformed and final products.
Keywords
Non-Axisymmetric Rectangular Cup; Multi-Stage Deep Drawing Process; Ironing; Biaxial Forming; Tool Design; Tool Fabrication; Thickness Distribution;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
연도 인용수 순위
1 S. H. Kim, S. H. Kim, H. Huh, 2000, Multi-stage analysis of elliptic cup drawing processes with the large aspect ratio by an explicit elasto-plastic finite element method, Trans. Mater. Process., Vol. 9, No. 3, pp.313-319.   과학기술학회마을
2 D. L. Ko, D. W. Jung, 2009, A study on the behavior of wrinkling in the square cups deep drawing of Al alloy, Trans. KSME(A), Vol. 33, No. 3, pp. 276-281.   과학기술학회마을   DOI   ScienceOn
3 S. H. Kim, S. H. Kim, H. Huh, 2002, Optimum tool design in a multi-stage rectangular cup drawing and ironing process with the large aspect ratio by the finite element analysis, Trans. KSME(A), Vol. 26, No. 6, pp. 1077-1084.   과학기술학회마을   DOI
4 H. J. Kim, T. W. Ku, B. S. Kang, 2001, FE analysis and die design of the multi-stage rectangular deep drawing process with the large aspect ratio, Trans. Mater. Process., Vol. 10, No. 6, pp. 456-464.   과학기술학회마을
5 T. W. Ku, C. S. Park, B. S. Kang, 2004, A study on initial blank design and modification for rectangular case forming with extreme aspect ratio, Trans. Mater. Process., Vol. 13, No. 4, pp. 307-318.   과학기술학회마을   DOI
6 T. W. Ku, H. Y. Kim, W. J. Song, B. S. Kang, 2008, Process design and finite element analysis of rectangular cup used for Ni-MH battery with high aspect ratio, Trans. Mater. Process., Vol. 17, No. 3, pp. 107-181.   과학기술학회마을   DOI   ScienceOn
7 Y. H. Moon, Y. K. Kang, J. W. Park, S. R. Gong, 2001, Tool temperature control to increase the deep drawability of aluminium 1050 sheet, Int. J. Mach. Tools Manuf., Vol. 41, pp. 1283-1294.   DOI
8 J. Wang, A. Goel, F. Yang, J. T. Gau, 2009, Blank optimization for sheet metal forming using multistage finite element simulation, Int. J. Adv. Manuf. Technol., Vol. 40, pp. 709-720.   DOI
9 M. A. Hassan, N. Takakura, K. Yamaguchim, 2002, Friction aided deep drawing of sheet metal using polyurethane ring and auxiliary metal punch. Part 1: experimental observations on the deep drawing of aluminium thin sheets and foils, Int. J. Mach. Tools Manuf., Vol. 42, pp. 625-631.   DOI
10 N. Kishor, D. R. Kumar, 2002, Optimization of initial blank shape to minimize earing in deep drawing using finite element method, J. Mater. Process. Technol., Vol. 130-131, pp. 20-30.   DOI
11 H. G. Kim, J. W. Bae, D. K. Choo, C. G. Kang, 2006, A study on the deep drawing of AZ31B magnesium sheet at warm and hot temperature, Trans. Mater. Process., Vol. 15, No. 7, pp. 504-511.   과학기술학회마을   DOI