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

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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]

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