In Problem 7.79, explain whether ears will form and, if so, why. In problem A steel sheet

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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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