Question: In Problem 7.79, explain whether ears will form and, if so, why. In problem A steel sheet has R values of 1.0, 1.5, and 2.0

In Problem 7.79, explain whether ears will form and, if so, why.
In problem
A steel sheet has R values of 1.0, 1.5, and 2.0 for the 0°, 45°, and 90° directions to rolling, respectively. For a round blank 150 mm in diameter, estimate the smallest cup diameter to which it can be drawn in one draw.

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The value of planar anisotropy is calculated as shown below R R 0 2 R 45 R 90 2 Here ... View full answer

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