Question #148203

A plate previously cold worked at 45% is 50mm thick.Its is then cold worked further by 27mm. What is the percentage cold work?

Expert's answer

Calculate thickness before 45% cold is as follows

t_{initial }"= \\frac{50}{0.55}"

= 90.90 mm

Calculate the cold worked percent as follows

% cold-worked = "\\frac{tinital - tfinal}{tinitial}"

= "\\frac{90.90-(50-27)}{90.90}\\times 100"

= "\\frac{67.9}{90.90}\\times 100"

= 74.6%

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