The maximum possible draft in rolling which is the difference between initial and final thickness of the sheet metal, depends on A. Rolling force B. Roll radius C. Roll width D. Yield shear stress of the material

Q: coefficient of friction between the roll and the plate i

A: Given; In a rolling operation using rolls of;Diameter,D=400 mmThickness, t=35mmFor the given…

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Q: Pressure pads are used in rolling process. Select one: True False

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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:

Q: In a single diameter s and thickn of thickne

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Q: 19.3. A series of cold rolling operations are to be used to reduce the thickness of a plate from 50…

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Q: A strip with a cross section 120 mm x 6 mm is being rolled with 20% reduction area, using rolls of…

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Q: The method of sheet forming in which springback is prevented is called .......... n) With the help…

A: Given :-  m) The method of sheet forming in which springback is prevented is called ..........n)…

Q: 1. Two thick slabs of 300mm each, the first one is used in cold rolling where μ=0.08 while the…

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Q: 1. What process is flexible and is widely used for bending plates for applications such as boilers,…

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Q: determine the overall fraction of the operation.

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A: Given:

Q: In blanking operation, if the final blank diameter is 200 mm & the clearance is 1.5 mm, then the Die…

A: Answer 8: In the blanking operation, the clearance is provided on the punch not on die so die and…

Q: Which of the following operations closely related to open-die forging: 1. Flashless forging, 3.…

A: Flashless forging - it is the closed die forging in which metal is kept at a certain temperature (…

Q: "). A drawing operation is used to form a cylindrical cup with inside diameter = 75 mm, height = 55…

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Q: Q4) Answer the following questions: - A) Compare briefly between the following: i. The direct and…

A: A). (i) Direct Extrusion Indirect Extrusion  A solid ram drives the billet  forward and…

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A: H=25-20 mm=5 mm R=250 mm Maximum draft for successful rolling per pass is given by, H=μ2R5 =…

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A: The intiallength of the tube is LiLi=2t+t        =3tThe final length of the tube is LfLf=2t+2t…

Q: 4. In rolling operation, large diameter roll induces.. on the surface of the rolled part. b. tension…

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Q: Friction between .................. and .... ........... in direct extrusion more force requires. m)…

A: Given :-  L) Friction between .................. and .... ........... in direct extrusion more…

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Q: Which of the following operations are closely related to open-die forging: Select one: O a. Coining…

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Q: What is the linear variation in the shear strain?

A: The change in shape obtained due to shear stress is defined by shear strain.

Q: - In a rolling process, the state of stress of the material undergoing deformation is (a) pure…

A: In a rolling process, the state of stress of the material undergoing deformation is Answer: (c)…

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.