A strip of 120 mm width and 8 mm thickness is rolled between two 30 mm diameter rolls to get a strip of 120 m width and 7.2 mm thickness. The speed of the strip at the exit is 30 m/min. There is no front or back tension. Assuming uniform roll pressure of 200 MPa in the roll bite and 100% mechanical efficiency, what is the minimum total power required to drive the two rolls?

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A: Given, Coefficient of friction = μ = 0.5 Radius of the roller = R = 1000 mm   Maximum possible…

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Q: A 300-mm-wide strip 25-mm thick is fed through a rolling mill with two powered rolls each of radius…

A: The answer has been attached in the form of images as follows:

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Q: ti-pass cold rolling operation is to be used to red mill. The following data is provided for the ro…

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Q: strip of 120 mm width and 8 mm thickness is rolled between two 30 mm diameter rolls to get a strip…

A: Given:σ=200 MPab=120 mmt=8 mmd=30 mm

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A: volume of workpiece=π4×22×3=9.4247 in3

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A: Given:d=410 mmw=140 mmt=8 mm

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Q: - 400 mm wide 25 mm thick strip is fed through a rolling mill with two powered olls each of radius…

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Q: In rolling process, calculate the applied torque in (N.m) when w= 600mm, K = 275 MPa, n = 0.10, %3D…

A: Given Data W=600 mm K=275 MPa n=0.1 ho=35 mm hf=29 mm R=373.3 mm

Q: process, a 150 mmx15 nd rotational speed is nis reduction is the m=

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Q: plate material is 300 MPa. The power required for the rolling operation in kW is closest to

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Q: The minimum possible thickness

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A: first of all find out tru strain and then mean flow stress from given data.refer below image.

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Q: What is Limiting Friction? Describe it with some real case example.

A: Solution:

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Q: I need the answer as soon as possible

A: Given data; hi=300 mmhf=295 mmR=300 mmN=100 rpmζavg=180 mpa

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Q: Find the angle of bite

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Forming and Shaping

Metal forming is a category of metalworking process through which the material can be given the desired shape and size by subjecting it to plastic deformation, where the component undergoes bulk deformation process upon application of loads. Unlike the shearing and machining process, the material does not undergo up to a failure point as indicated in the stress-strain curve. Hence, the stresses induced during the forming process are greater than yield strength but less than the failure strength of the material. The process does not lead to the loss of material, so it can be said to be an economical process. During forming, the material is subjected to tensile forces, compressive forces, bending, and shearing loading conditions. The material should possess the property of ductility to undergo the forming process.