Question

a.) Based on the image below, calculate the individual drafts for each of the stands in the tandem-rolling operation.
b.) After completing the individual drafts, calculate the following at each roller: incremental strain, cumulative strain, cumulative work/vol, and incremental work/vol

NOTE: To calculate work, assume the material is 1100-O Aluminum and use K =180 MPa and n=0.20

Stand 1 2 3 4 5 Speed: 30 17.7 10.7 6.6 4.12.6m/s Take-up((+ reel Payoff +reel Thickness: 0.26 0.34 0.56 0.90 1.45 2.25 mm Stand 4 Stand 5 1.45 mm 2.25 mm 0.90 mm FIGURE 13.11 An example of a tandem-rolling operation.

Answer 1