Foundations of Materials Science and Engineering
6th Edition
ISBN: 9781259696558
Author: SMITH
Publisher: MCG
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Chapter 6.13, Problem 100SEP
To determine
The properties of the material that the roller should have.
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Check out a sample textbook solutionStudents have asked these similar questions
Why the cupping test may not predict well the formability of sheet metals in actual forming
processes?
Cupping test uses square or rectangular specimens only.
Strain in some forming operations is not axi-symmetric.
Cupping test is mainly for compression
Stress is rarely uni-directional in sheet metal forming.
Hot rolling is used for simple parts only.
Select one:
True
False
(c) A flat rolling operation is being carried out where the roll radius is 200 mm and the roll
rotates at 100 rpm. The workpiece material is annealed low carbon steel with 200 mm wide
and 10 mm thickness. The strength coefficient and the strain hardening of the carbon steel
are 530 MPa and 0.26, respectively. The coefficient of friction is 0.2.
(i)
Caicurae tne roll force and torque if the workpiece is rolled to a thickness of 4 mm.
(ii)
Calculate the maximum possible draft and evaluate how friction effect the thickness
of the rolled workpiece.
Chapter 6 Solutions
Foundations of Materials Science and Engineering
Ch. 6.13 - (a) How are metal alloys made by the casting...Ch. 6.13 - Why are cast metal sheet ingots hot-rolled first...Ch. 6.13 - What type of heat treatment is given to the rolled...Ch. 6.13 - Describe and illustrate the following types of...Ch. 6.13 - Describe the forging process. What is the...Ch. 6.13 - What is the difference between open-die and...Ch. 6.13 - Describe the wire-drawing process. Why is it...Ch. 6.13 - Distinguish between elastic and plastic...Ch. 6.13 - Define (a) engineering stress and strain and (b)...Ch. 6.13 - Define (a) modulus of elasticity, (b) yield...
Ch. 6.13 - (a) Define the hardness of a metal. (b) How is the...Ch. 6.13 - What types of indenters are used in (a) the...Ch. 6.13 - What are slipbands and slip lines? What causes the...Ch. 6.13 - Describe the slip mechanism that enables a metal...Ch. 6.13 - (a) Why does slip in metals usually take place on...Ch. 6.13 - Prob. 16KCPCh. 6.13 - What other types of slip planes are important...Ch. 6.13 - Define the critical resolved shear stress for a...Ch. 6.13 - Describe the deformation twinning process that...Ch. 6.13 - What is the difference between the slip and...Ch. 6.13 - Prob. 21KCPCh. 6.13 - Prob. 22KCPCh. 6.13 - What experimental evidence shows that grain...Ch. 6.13 - (a) Describe the grain shape changes that occur...Ch. 6.13 - How is the ductility of a metal normally affected...Ch. 6.13 - (a) What is solid-solution strengthening? Describe...Ch. 6.13 - What are the three main metallurgical stages that...Ch. 6.13 - Describe the microstructure of a heavily...Ch. 6.13 - Describe what occurs microscopically when a...Ch. 6.13 - When a cold-worked metal is heated into the...Ch. 6.13 - Describe what occurs microscopically when a...Ch. 6.13 - When a cold-worked metal is heated into the...Ch. 6.13 - Prob. 33KCPCh. 6.13 - Prob. 34KCPCh. 6.13 - Prob. 35KCPCh. 6.13 - Prob. 36KCPCh. 6.13 - Prob. 37KCPCh. 6.13 - Why are nanocrystalline materials stronger? Answer...Ch. 6.13 - A 70% Cu30% Zn brass sheet is 0.0955 cm thick and...Ch. 6.13 - A sheet of aluminum alloy is cold-rolled 30% to a...Ch. 6.13 - Calculate the percent cold reduction when an...Ch. 6.13 - Prob. 42AAPCh. 6.13 - What is the relationship between engineering...Ch. 6.13 - A tensile specimen of cartridge brass sheet has a...Ch. 6.13 - A 0.505-in.-diameter rod of an aluminum alloy is...Ch. 6.13 - In Figure 6.23, estimate the toughness of SAE 1340...Ch. 6.13 - The following engineering stress-strain data were...Ch. 6.13 - Prob. 49AAPCh. 6.13 - A 0.505-in.-diameter aluminum alloy test bar is...Ch. 6.13 - A 20-cm-long rod with a diameter of 0.250 cm is...Ch. 6.13 - Prob. 52AAPCh. 6.13 - Prob. 53AAPCh. 6.13 - Prob. 54AAPCh. 6.13 - Prob. 55AAPCh. 6.13 - Prob. 56AAPCh. 6.13 - A specimen of commercially pure titanium has a...Ch. 6.13 - Prob. 58AAPCh. 6.13 - Prob. 59AAPCh. 6.13 - Prob. 60AAPCh. 6.13 - Prob. 61AAPCh. 6.13 - Prob. 62AAPCh. 6.13 - Prob. 63AAPCh. 6.13 - Prob. 64AAPCh. 6.13 - Prob. 65SEPCh. 6.13 - Prob. 66SEPCh. 6.13 - A 20-mm-diameter, 350-mm-long rod made of an...Ch. 6.13 - Prob. 68SEPCh. 6.13 - Prob. 69SEPCh. 6.13 - Consider casting a cube and a sphere on the same...Ch. 6.13 - When manufacturing complex shapes using cold...Ch. 6.13 - Prob. 74SEPCh. 6.13 - Draw a generic engineering stress-strain diagram...Ch. 6.13 - (a) Draw a generic engineering stress-strain...Ch. 6.13 - Prob. 77SEPCh. 6.13 - Prob. 78SEPCh. 6.13 - Prob. 79SEPCh. 6.13 - The material for a rod of cross-sectional area...Ch. 6.13 - What do E, G, v, Ur, and toughness tell you about...Ch. 6.13 - A cylindrical component is loaded in tension until...Ch. 6.13 - Referring to Figures 6.20 and 6.21 (read the...Ch. 6.13 - (a) Show, using the definition of the Poissons...Ch. 6.13 - A one-inch cube of tempered stainless steel (alloy...Ch. 6.13 - Prob. 87SEPCh. 6.13 - Prob. 88SEPCh. 6.13 - Prob. 89SEPCh. 6.13 - Prob. 90SEPCh. 6.13 - Prob. 91SEPCh. 6.13 - Prob. 92SEPCh. 6.13 - Prob. 93SEPCh. 6.13 - Prob. 94SEPCh. 6.13 - Starting with a 2-in.-diameter rod of brass, we...Ch. 6.13 - Prob. 96SEPCh. 6.13 - Prob. 97SEPCh. 6.13 - Prob. 98SEPCh. 6.13 - The cupro-nickel substitutional solid solution...Ch. 6.13 - Prob. 100SEP
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- In hot rolling process, the following data was collected: N=20rpm, R=20cm, to-40mm, t-35mm, C=415MPA, m=0.02, w=60cm, one pass rolling. Find Froll, T and Power.arrow_forward5) A steel specimen of rectangular cross section with 120 mm width, 180 mm thickness and 90 mm height was upset at room temperature by open-die forging to a height of 55 mm. If the strength coefficient and strain hardening exponent of this material were 1015 MPa and 0.17 respectively, the coefficient of friction is 0.2, and assuming that the thickness would not change during forging; determine the required upsetting force at the end of stroke.arrow_forwardThere is a steel that has been rolled and you want to verify its mechanical properties, so two samples are cut, one in the direction of the rolling and the other perpendicular to it. In which case both samples have the same properties and in which case they are not the same.arrow_forward
- Homework: In hot rolling process, the following data was collected: N=20rpm, R=20cm, to=40mm, tF35mm, C=415MPA, m=0.02, w-60cm one pass rolling. Find Froll, T and Power.arrow_forwardQUESTION 3 Extrusion and drawing have numerous application in manufacturing continuous as well as discrete products from a wide variety of metals and alloys. There are three types of extrusion. Please describe and draw the schematic illustration to represent each of them. Question 4 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.arrow_forwardASAParrow_forward
- Forging process is suitable for mass production. Select one: True Falsearrow_forwardWhat are the limitations of the Use of the Shear Formula?arrow_forward3) A direct extrusion process is used to reduce a cylindrical part that has a diameter of 5 inch and is 10 inch long to a cylinder with 2 inch diameter. The die angle is 90°. The cylinder material has a strength coefficient of 10 ksi and strain hardening exponent Of 0.15. Determine a. Extrusion strain b. Ram forcearrow_forward
- Do you expect a material's stiffness to increase or decrease if there is more than one deformation mechanism occuring? Why?arrow_forwardIn a single pass rolling process using 410 mm diameter steel rollers, a strip width 140 mm and thickness 8 mm undergoes 10% reduction of thickness. Find the angle of bite in radians?arrow_forwardIf the tensile specimen is not cylindrical rod shaped but a flat rectangular plate, how do you expect necking to occur in this type of specimen?arrow_forward
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