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An annealed metal alloy rod (diameter 20 mm) is to be drawn to a smaller diameter at a temperature of 120 C. The efficiency of

An annealed metal alloy rod (diameter 20 mm) is to be drawn to a smaller diameter at a temperature of 120 C. The efficiency of the drawing operation is around 0.40. To which diameter (in mm) can the rod be drawn without compromising its performance, i.e. to maintain a constant diameter everywhere? Properties of annealed metal alloy: K = 350 MPa, n = 0.44

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