(Solved): (b) A cylindrical cup is produced in a deep drawing operation. The cup height =75mm, and its insi ...

(b) A cylindrical cup is produced in a deep drawing operation. The cup height $=75\mathrm{mm}$, and its inside diameter $=100\mathrm{mm}$. Sheet-metal thickness $=2\mathrm{mm}$. If the blank diameter $=225\mathrm{mm}$, determine (i) drawing ratio (ii) reduction, (iii) thickness-to-diameter ratio. (iv) Is the operation feasible? (c) If a worker needs to produce a long deep cup with a thin wall, suggest the process and their steps to produce the cup.