In rolling operation, roll strip contact length is evaluated as
Q: Q5- A single-pass rolling operation reduces a 15mm-thick plate to 12mm. The roll has a radius of…
A: GIVEN DATA INTIAL THICKNESS hi=15mm FINAL THICKNESS hf=12mm ROLL RADIUS R=400mm WE HAVE TO CALCULATE…
Q: Depict the important uses of rolling and forging in industries?
A: Rolling process: It is a type of metal forming process under which the material is passed between…
Q: In a rolling operation using a roll of diameter 1.5 m, if a 35 mm thick plate cannot be reduced to…
A: Given data: - The diameter of the roll is D = 1.5 m. The maximum possible reduction is t' = 12 mm.…
Q: Question 8 8.1 Calculate the power required to roll an 8650 steel strip, 140 mm wide and 20 mm thick…
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Q: Question 3 A rolling operation on a 250 mm wide, 8 mm thick, 1112 cold rolled steel takes place…
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Q: Q11/which defect in sheets during rolling process appear if the roll bending?
A: As per given question We have to answer which defect in sheets during rolling process appear if the…
Q: If it is desired to reduce the power required for the rolling operation of part (b), what…
A: Given : Roller operation for a workpiece To find : To reduce the power required
Q: Fib the time period, if pure rolling is the condition
A: Given data: Roller connected to spring is released from the inclined plane To determine: Time…
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: Explain the disadvantages of Tube Drawing process in which mandrel is not used.
A: The tube drawing process that reduces the tube diameter without using a mandrel is known as tube…
Q: 9) Which of the following type of stresses is/are primarily involved in the rolling operation?…
A: Explanation: In the rolling operation, the primary type of stresses acts due to compressive force of…
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: Explain the difference between Flat Rolling and Shape Rolling processes.
A: Rolling: The process of reducing the thickness of a metal slab is done by rolling. It is done to…
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 strip with a cross section 120 mm x 6 mm is being rolled with 20% reduction area, using rolls of…
A: Given Strip = 120 mm X 6 mm Deduction = 20% Diameter = 400 mm Coefficient of friction = 0.1 To find…
Q: A strip of thickness 40 mm is to be rolled to a thickness 20 mm using a two-high mill having a rolls…
A: Given data, H1= 40 mm H2 = 20 mm D= 200 mm
Q: Clarify aspect of economically and technically grounds the preference of fine reductions rather than…
A: The fine reduction is much better than thick reduction due to following reasons : Technically : Due…
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: Explain steps of rolling process in forming process?
A: Steps in rolling process
Q: A steel sheet has R values of 1.0, 1.5, and 2.0 for the 0°, 45° and 90° directions to rolling,…
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Q: Describes the typical defects in flat rolling by providing the schematic illustration for each of…
A: In spite of the fact that stretching decreases the thickness of materials, there are a few…
Q: A strip with cross-sectional area 150 mm x 4.5 mm is being rolled with 20% reduction of area using…
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Q: A flat-rolling operation of 250 mm wide alloy stee Calculate roll torque
A: GIVEN: **Width (Wt)=250mm **Diameter of rollers (D)=600mm **Height before rolling (ho)=30mm**Height…
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: What is rolling process and its parameters? Diagrams?
A: Rolling is a process where metal work pieces are plastically deformed by passing them between…
Q: Derive the expression for roll separating force and power in rolling.
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Q: In a two-stage wire drawing operation, the fractional reduction (ratio of change in cross- sectional…
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Q: Give short Definition about: 1. Rolling: 2. Extrusion: 3. Strength: 4. Elasticity: 5. Plasticity:
A: Rolling and extrusion are the metal forming processes. Metal forming is a process where the…
Q: Briefly explain various methods available for breakdown passes in rolling. Explain their…
A: given; Briefly explain various methods available for breakdown passes in rolling. Explain their…
Q: Name, draw a neat sketch and explain why each of the following designs of rolling mill are used…
A: rolling mill are used instead of a basic two high rolling mill.i) A mill consisting of four…
Q: Name, draw a neat sketch and explain why each of the following designs of rolling mill are used…
A: To draw a neat sketch of: (i) A mill consist of four rollers (ii) A mill consist of six or more…
Q: Describe the advantages of servo punch-presses for forging and stamping sheet metal parts.
A: Srevo Press:- The servo press is a press machine used for forging and stamping sheet metal parts by…
Q: Explain the function of backing rolls in Four High Rolling Mill and Cluster Rolling Mill.…
A: The function of backing rolls in 4 high rolling mill and cluster mill is to avoid bending in work…
Q: It is not possible to conduct rolling process without friction. Explain this statement
A: The friction force is the force that provides the torque required for the object to acquire the…
Q: 27(B). Distinguish the Open die and closed die forging process with its benefits and limitations.
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Q: A strip (300x30 mm) is fed through a rolling mill with two powered rolls (each with radius of 300…
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Q: Explain the function of backing rolls in Four High Rolling Mill and Cluster Rolling Mill.
A: Rolling mills is a tool used in the rolling process in which metal strips pass through a set of…
Q: 7) In deep drawing of sheets, the values of limiting drawing ratio depends on percentage elongation…
A: As per given question deep drawing of sheets, limiting drawing ratio depends on
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- 1) Selection of die in forging process is very important in order to control the quality of the product. List four general requirements for die material.In sheet metal parts, the minimum bending radius is dependent on which of the following elements? a. Thickness b. Type of a material c. State of material d. Thickness and type of material e. Type of process.16 30. Forging process is suitable for mass production. Select one: True False
- 21) In the drawing operation, mechanical property ductility is an important parameter. Select one: True FalseThank you in advance If you have a Bulk Deformation Process in Metalworking with a product in the Rolling Process that has the following information: Original Thickness = 0.85” , Original Width = 12” , Entering Velocity = 28”/min, Final Thickness = 0.66, Exiting Velocity (in/min) = 30 (use 4 digits for answers) Final Width = _____________ in.Forging procedures may be classified in part by how much room there is for movement in the die. Please identify the three primary classes that this system generates.
- A annealed copper strip 300mm wide and 25mm thick is being rolled to a thickness of 10mm in one pass. The roll radius 300mm and the rolls speed 100rpm. Please calculate the roll force required. Solve correctly please. (Gpt/Ai wrong answer not allowed)Why do the supports that resist a force, such as a pin, restrict displacement?2. a) With a neat diagram briefly explain the principle of Explosive Forming. b) Write any two applications of Explosive Forming.
- 1. The friction in direct extrusion is ________ Indirect extrusion. a) Greater than. b) Equal to. c) Less than.2. The Temperature in hot forming process is ____. a) (0 to 0.4) Tm. b) (0.5 to 0.75) Tm. c) 0.9 Tm. d) 0.4 Tm. e) 0.8 Tm. f) (0.3 to 0.5) Tm. Where Tm is the melting temperature of the work piece.3. Maximum draft in rolling depends on _______. a) Coefficient of friction and roll radius. b) Thickness of plate. c) Smoothness of roll Surface. d) Roll rotational speed.e) Width of the plate. f) Length of the plate.4. In deep drawing process, the drawing ratio (DR) has a higher limit (value) of:- a) 6. b) 1. c) 4. d) 5. e) 7. f) 2. g) Zero.5. Spring Back is a phenomena usually associated with which of the following processes:-a) Extrusion. b) Forging. c) Bending. d) Wire drawing. e) Rolling. f) Sheet metal cutting. g) Deep Drawing.6) 32. Initial volume of the billet is same final volume in forging process. Select one: True False1. Derive an expression for the reduction r in drawing as a function of drawing ratio DR.2. A cup is to be drawn in a deep drawing operation. The height of the cup is 75 mm and its insidediameter = 100 mm. The sheet-metal thickness = 2 mm. If the blank diameter = 225 mm, determine(a) drawing ratio, (b) reduction, and (c) thickness-to-diameter ratio. (d) Does the operation seem feasible?3. A drawing operation is used to form a cylindrical cup with inside diameter = 65 mm and height =50mm. The starting blank size = 140 mm and the stock thickness = 2.8mm. determine (a) drawing forceand (b) holding force, given that the tensile strength of the sheet metal (low-carbon steel) = 350 MPa andyield strength = 190 MPa. The die corner radius = 6 mm. Based on these data, is the operation feasible?