' Explain briefly the relationship between the load-stroke in open die forging as illustrated in the figures bellow. Take in consideration the effect of coefficient of friction. 1500 1000 500 75 62 49 h (mm) 13 26 39 Stroke

Q: A piece with a height of 120 mm and a diameter of 75 mm can be increased to 80 mm in height by…

A: Permissible stress is stress which produces due to pressure or forces which does not exceed the…

Q: A plate of 270 mm wide and 25 mm thick from carbon steel. A two-high rolling mill is used to reduce…

A: (a) Calculate the contact length of arc. Lp=R∆H=60025-20=54.77 mm Calculate the true strain.…

Q: operation of open-die forging

A: To find :-  Die forging

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…

Q: If coefficient of friction µ in a rolling process is 0.5 and radius of roller is 1,000 mm, what is…

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

Q: Thickness of the plate is reduced from 40mm to 20mm by succesive cold rolling passes using identical…

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Q: 3. During the rolling process, the average flow stress is 20,000 lb/in², determining the amount of…

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Q: The degree to which the work is limited in the die is one approach to characterize forging…

A: Given question: The degree to which the work is limited in the die is one approach to characterize…

Q: I need only part d) plz answer in 30min A 4-in-thick aluminum slab is 10 in wide and 100 in long. It…

A: You are asking for only d part so iam solving only that part

Q: A 300 mm thick slab is being cold rolled using roll of 600 mm diameter. If the coefficient of…

A: Given, Thickness of slab=300mm Diameter of roller,D=600mm Radius of roller, R=300mm Coefficient of…

Q: O What is forging? One way to classify forging operations is by the degree to which the work is…

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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: A blanking operation is to be performed on 2.0 mm thick cold-rolled steel (half hard). The part is…

A: Write the given data. t=2 mmD=45 mmA=0.075

Q: A cylindrical working part is subjected to a forging landfall operation. The blank is 3.0 in. high…

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

Q: )Give the reasons to use closed die forging.

A: Forgings minimize wasted material and are cost-effective, quick, and retain their durability under…

Q: Compare hot and cold rolling products in terms of surface quality, mechanical properties, force…

A: Hot rolling process:- In this process metal will roll above recrystallisation temperature. Cold…

Q: A deep drawing operation is to be performed on a sheet-metal blank that is 1/8 in thick. The height…

A: Given data: Thickness of sheet metal blank = t = 1/8 in Height of cup = h = 3.8 in Diameter of cup =…

Q: single pass rolling process is used with 410 mm diameter steel rollers and a strip of width 140 mm…

A: Given:d=410 mmw=140 mmt=8 mm

Q: Why parting line is detrimental in forging?

A: Parting line :- *it is the line along the surface of a forging where the dies meet . *Flash is…

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: * A cylindrical workpiece made of 1100-0 Aluminum that is 18 in high and 16 in in diameter and is to…

A: The forging force for open die forging is 1.3 MN.

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

A: Given, In a single pass rolling operation:h1=20mmh2=18mmR=250 mmwidth=100mmσ0=300 MPa We have to…

Q: The minimum possible thickness

A: Given; A thick sheet having 4 mm is rolled with 300 mm diamaterOr, d=300 mm t=4 mmFriction…

Q: A 40 mm thick plate made from 410 grade stainless steel is to be reduced to 34 mm in one pass in a…

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Q: Thickness of the sheet produced in a single pass.

A: Given data; Thickness, t=6 mmDiameter,D=200 mmGiven is diameter rolls to reduce thickness without…

Q: 10)The maximum draft in a rolling operation is (R= radius of roll and p=coefficient of friction) is…

A: Rolling is a type of metal deformation that is commonly utilised in the metal forming process. It is…

Q: A 40 mm thick plate made from 410 grade stainless steel is to be reduced to 34 mm in one pass in a…

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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.