Research on Drawing Wedge Test for Sheet Strips

From the theoretical analysis and numierical calculation on the drawing wedge processes of sheet strips,the law of the stress and strain distribution on the fan shaped deformation region,the change of the axial tension force,and the coefficient of the limit drawing are studied in this paper.Menwhile,the setup for the drawing wedge test is developed,and the drawing wedge processes of sheet strips are investigated experimentally.The analytical and numerical results are in basical agreement with experiment.Based on the above analyses,it is shown that the simple drawing wedge test of sheet strips can be used for replacing the cylindrical cup drawing test.