A New Method For Evaluating Limiting Drawing Ratio Considering the Fracture Criteria During the Deep Drawing of Cylindrical Cup


Abstract in English

In this paper an improved analytical method for estimating the limiting drawing ratio (LDR) for deep drawing of cylindrical cup (the first drawing stage) is presented . In this method, the effects of parameters such as blank holder force , coefficient of friction, strain hardening exponent, normal plastic anisotropy ratio on LDR is investigated .

References used

Leu,D 1999 The limiting drawing ratio for plastic instability of the cup-drawing process, Journal of Materials Processing Technology, 168-176
Verma,R and Chandra,S 2006 An improved model for predicting limiting drawing ratio, Journal of Materials Processing Technology, 218-224
Fazli,A & Arezoo,B 2012 Prediction of limiting drawing ratio considering the effective parameters of die arc region, Journal of Materials Processing Technology, Vol. 4 , 745-751

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