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A roll diameter of 300 mm has a maximum possible reduction of 3 mm, find the angle of bite for the process?

A roll diameter of 300 mm has a maximum possible reduction of 3 mm, find the angle of bite for the process? Correct Answer 5.71

Δh=u2 R; where u is coefficient of friction, and R is roll diameter. -> 3=u2(300) -> √(1/100)=u -> So the coefficient of friction is 0.1 -> The angle of the bite is u=tan(θ) -> 0.1=tan(θ) -> θ=5.71.

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