In a slab rolling operation, the maximum thickness reduction $$\left( {\Delta {h_{\max }}} \right)$$ is given by $$\Delta {h_{\max }} = {\mu ^2}R,$$ where $$R$$ is the radius of the roll and $$\mu $$ is the coefficient of friction between the roll and the sheet. If $$\mu = 0.1,$$ the maximum angle subtended by the deformation zone at the center of the roll (bit angle in degrees) is ____________

GATE 2015 Mechanical Engineering PYQ — Production Engineering

GATE 2015Set 1PYQNATanswer pendingexplanation sooneasy

Production Engineering · Forming

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Forming has appeared in GATE Mechanical Engineering 56 times across 25 years (2016, 2017, 2022, 2024, 2025, ...).