{"title":"Investigation of Tearing in Hydroforming Process with Analytical Equations and Finite Element Method","authors":"H.Seidi, M.Jalali Azizpour, S.A.Zahedi","volume":45,"journal":"International Journal of Mechanical and Mechatronics Engineering","pagesStart":817,"pagesEnd":821,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/11789","abstract":"Today, Hydroforming technology provides an\r\nattractive alternative to conventional matched die forming, especially\r\nfor cost-sensitive, lower volume production, and for parts with\r\nirregular contours. In this study the critical fluid pressures which lead\r\nto rupture in the workpiece has been investigated by theoretical and\r\nfinite element methods. The axisymmetric analysis was developed to\r\ninvestigate the tearing phenomenon in cylindrical Hydroforming\r\nDeep Drawing (HDD). By use of obtained equations the effect of\r\nanisotropy, drawing ratio, sheet thickness and strain hardening\r\nexponent on tearing diagram were investigated.","references":"[1] Kandil. A, An experimental study of hydroforming deep drawing,\r\nJournal of Material Processing Technology, Vol. 134, No.1, 2003, pp.\r\n70-80\r\n[2] Oh. Soo-Ik, Byung-Hee Jeon , Hyun-Yong Kim, Jae- Bong Yang,\r\nApplications of hydroforming processes to automobile parts, Journal of\r\nMaterial Processing Technology, Vol. 174, No.1-3, 2006, pp. 42-55\r\n[3] Parsa. M.H, P. Darbandi, Experimental and numerical analyses of sheet\r\nhydroforming process for production of an automobile body part,\r\nJournal of Material Processing Technology, Vol. 198, No. 1-3, 2008,\r\npp. 381-390\r\n[4] Lang. L, J. Danckert, K. Nielsen and X. Zhou, Investigation into the\r\nforming of a complex cup locally constrained by a round die based on an\r\ninnovative hydromechanical deep drawing method, Journal of Material\r\nProcessing Technology, Vol. 167, No. 2-3, 2005, pp. 191-200.\r\n[5] Zhang. S.H, M.R. Jensen, J. Danckert, K.B. Nielsen, D.C. Kang and L.H.\r\nLang, Analysis of the hydromechanical deep drawing of cylindrical\r\ncups\", Journal of Material Processing Technology, Vol. 103, No. 3,\r\n2000, pp. 367-373\r\n[6] Lang. L, J, Danckert and K. Nielsen, Investigation into hydrodynamic deep\r\ndrawing assisted by radial pressure Part II. Numerical analysis of the\r\ndrawing mechanism and the process parameters, Journal of Material\r\nProcessing Technology, Vol. 166, No. 1, 2005, pp. 150-161\r\n[7] Dachang. K, C. Yu and X. Yongchao, Hydromechanical deep drawing of\r\nsuperalloy cups, Journal of Material Processing Technology, Vol. 166,\r\nNo. 2, 2005, pp.243-246.\r\n[8] Lang. L, T. Li, D. Ana, C. Chia, K. Nielsen and J. Danckert, Investigation\r\ninto hydromechanical deep drawing of aluminum alloy Complicated\r\ncomponents in aircraft manufacturing, Material Science and England,\r\n2008, In press.\r\n[9] Lo. Sy-wei, Tze-Chi Hsu and W. R. D. Wilson, An analysis of the\r\nhemispherical-punch hydroforming processe, Journal of Material\r\nProcessing Technology, Vol. 37, No. 1-4, 1993, pp. 225-239.\r\n[10] Tirosh. J and A. Hazut, The hydrodynamic deep-drawing process for\r\nblanks of non-uniform thickness, International Journal of Mechanical\r\nSciences, Vol. 31, No. 2, 1989, pp. 121-130.\r\n[11] Yossifon. S and J. Tirosh, Rupture instability in hydroforming deepdrawing\r\nprocess, International Journal of Mechanical Sciences, Vol. 27,\r\nNo. 9, 1985,pp. 559-570..","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 45, 2010"}