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김영석(Y.S.Kim),박기철(K.C.Park),최원집(W.J.Choi) 한국자동차공학회 1993 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Cup drawing tests were performed to evaluate the friction characteristics of sheet metals.<br/> The 1 inear relationship between drawing force and blank holding force obtained from the cup drawing test was used to calculate the coefficient of friction of the sheet metal.<br/> The friction coefficient was compared to that from conventional<br/> draw bead friction test,<br/> It was clarified that the cup drawing test can be used as a<br/> simple and convenient method for evaluating the friction characteristic of the sheet metal and also lubricity of the lubricant used.<br/> Key words: Stamping formability, Sheet metal, Cup drawing test. Coefficient of friction, Draw bead friction test, Lubricant<br/>
김영석(Y. S. Kim),최원집(W. J. Choi) 한국자동차공학회 1994 한국 자동차공학회논문집 Vol.2 No.1
Cup drawing tests were performed to evaluate the friction characteristics of sheet metals. The linear relationship between drawing force and blank holding force obtained from the cup drawing test was used to calculate the coefficient of friction of the sheet metal. The friction coefficient was compared to that from conventional draw bead friction test. It was clarified that the cup drawing test can be used as a simple and convenient method for evaluating the friction characteristic of the sheet metal and also lubricity of the lubricant used.