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5. Wire drawing and Deep Drawing The maximum deformation permissible in a single wire drawing operation is limited by the condition that the tensile stress pulling the wire through must be less than the yield strength of the e mergent wire. We thus have Y≤S=Yln(A_1/A_2) from epns. 22.3 and 22.4 not shown which gives A_1/A_2≤2.7, i.e.a maximum drawability of 63 per cent reduction of area under ideal conditions. In practice, various factors affect this value. There is redundant deformation, as
5. Wire drawing and Deep Drawing The maximum deformation permissible in a single wire drawing operation is limited by the condition that the tensile stress pulling the wire through must be less than the yield strength of the e mergent wire. Inln (A_1 / A_2) from epns. 22.3 and 22.4 not shown which gives A_1 / A_2 ≦ 2.7, iea maximum drawability of 63 per cent reduction of area under ideal conditions. In practice, various factors affect this value. as