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Calculate the...

Question

Calculate the bite angle when rolling plates 12 mm thick using work rolls 600 mm diameter and reducing the thickness by 3mm
5.73

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Solution

The correct option is A 5.73
$B i t e a n g l e : θ = t a n^{- 1} ⎛ ⎜ ⎜ ⎜ ⎝ \frac{\sqrt{R Δ h}}{R - \frac{Δ h}{2}} ⎞ ⎟ ⎟ ⎟ ⎠$

$H e r e, Δ h = 3 m m, R = 300 m m$

$θ = t a n^{- 1} (\frac{\sqrt{300 \times 3}}{300 - 1.5}) = {5.73}^{\circ}$

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