# Question: an aluminum foil 6061o k 30 000 psi n...

###### Question details

**An aluminum foil 6061-O (K = 30 000 psi, n = 0.2) 9
inches wide is rolled from h0 = 1 in at hf = 0.8 in. The rollers
have a radius R = 12 in and rotate at 100 rpm.**

**(a) Calculate (approximate) the required power of the
roller motor (n = 0.80).**

**(b) How much is the minimum friction factor to be
achievable or not? reduction; To calculate the required processing
power you can use the relationship:**

**Pw = 2 π Fr lc n / 60 000 (kW) [Fr: N, lc: m, n:
rpm]**