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A 4 mm thick aluminum sheet of width w = 100 mm is rolled in a two-roll mill of roll diameter 200 mm each. The workpiece is lubricated with a mineral oil, which gives a coefficient of friction, mμ= 0.1. The flow stress (σ) of the material in MPa is σ = 207 + 414ε, where e is the true strain. Assuming rolling to be a plane strain deformation process, the roll separation force (F) for maximum permissible draft (thickness reduction) is _________ kN (round off to the nearest integer).
Use:

where  is average flow stress, L is roll- workpiece contact length, and  is the average sheet thickness.
    Correct answer is '350.32'. Can you explain this answer?
    Most Upvoted Answer
    A 4 mm thick aluminum sheet of width w = 100 mm is rolled in a two-rol...
    Rolling, h0 = 4 mm
    W = 100 mm
    D = 200 mm
    σ = 207 + 414ε
    (Δh)max = 0.12 x 100 = h0 - hf
    hf = 3 mm



    F = 350.32 kN
    Hence, the correct answer is 35.32.
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    A 4 mm thick aluminum sheet of width w = 100 mm is rolled in a two-roll mill of roll diameter 200 mm each. The workpiece is lubricated with a mineral oil, which gives a coefficient of friction, mμ= 0.1. The flow stress (σ) of the material in MPa is σ = 207 + 414ε, where e is the true strain. Assuming rolling to be a plane strain deformation process, the roll separation force (F) for maximum permissible draft (thickness reduction) is _________ kN (round off to the nearest integer).Use:where is average flow stress, L is roll- workpiece contact length, and is theaverage sheet thickness.Correct answer is '350.32'. Can you explain this answer?
    Question Description
    A 4 mm thick aluminum sheet of width w = 100 mm is rolled in a two-roll mill of roll diameter 200 mm each. The workpiece is lubricated with a mineral oil, which gives a coefficient of friction, mμ= 0.1. The flow stress (σ) of the material in MPa is σ = 207 + 414ε, where e is the true strain. Assuming rolling to be a plane strain deformation process, the roll separation force (F) for maximum permissible draft (thickness reduction) is _________ kN (round off to the nearest integer).Use:where is average flow stress, L is roll- workpiece contact length, and is theaverage sheet thickness.Correct answer is '350.32'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about A 4 mm thick aluminum sheet of width w = 100 mm is rolled in a two-roll mill of roll diameter 200 mm each. The workpiece is lubricated with a mineral oil, which gives a coefficient of friction, mμ= 0.1. The flow stress (σ) of the material in MPa is σ = 207 + 414ε, where e is the true strain. Assuming rolling to be a plane strain deformation process, the roll separation force (F) for maximum permissible draft (thickness reduction) is _________ kN (round off to the nearest integer).Use:where is average flow stress, L is roll- workpiece contact length, and is theaverage sheet thickness.Correct answer is '350.32'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A 4 mm thick aluminum sheet of width w = 100 mm is rolled in a two-roll mill of roll diameter 200 mm each. The workpiece is lubricated with a mineral oil, which gives a coefficient of friction, mμ= 0.1. The flow stress (σ) of the material in MPa is σ = 207 + 414ε, where e is the true strain. Assuming rolling to be a plane strain deformation process, the roll separation force (F) for maximum permissible draft (thickness reduction) is _________ kN (round off to the nearest integer).Use:where is average flow stress, L is roll- workpiece contact length, and is theaverage sheet thickness.Correct answer is '350.32'. Can you explain this answer?.
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