Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Textbook Question
Chapter 13, Problem 1RQ
What is the difference between a plate and a sheet?
Expert Solution & Answer
To determine
What is the difference between a plate and a sheet?
Explanation of Solution
| Plate | Sheet |
|
|
| 2. The usage of sheets in the transportation industries as an automobile body panels, cans, tractor trailers. |
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QUESTION 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.
Which defect arises due to small Punch
force in sheet drawing operations?
O Tearing
O Wall wrinkling
O Flange wrinkling
Earing
One way to describe forging processes is by the amount of work that can be done in the die. Based on this grouping, what are the three main types?
Chapter 13 Solutions
Manufacturing Engineering & Technology
Ch. 13 - What is the difference between a plate and a...Ch. 13 - Define roll gap, neutral point, and draft.Ch. 13 - What factors contribute to spreading in flat...Ch. 13 - What is forward slip? Why is it important?Ch. 13 - Describe the types of deflections that rolls...Ch. 13 - Describe the difference between a bloom, a slab,...Ch. 13 - Why may roller leveling be a necessary operation?Ch. 13 - List the defects commonly observed in flat...Ch. 13 - What are the advantages of tandem rolling? Pack...Ch. 13 - How are seamless tubes produced?
Ch. 13 - Why is the surface finish of a rolled product...Ch. 13 - What is a Sendzimir mill? What are its important...Ch. 13 - What is the Mannesmann process? How is it...Ch. 13 - Describe ring rolling. Is there a neutral plane in...Ch. 13 - How is back tension generated?Ch. 13 - Explain why the rolling process was invented and...Ch. 13 - Flat rolling reduces the thickness of plates and...Ch. 13 - Explain how the residual stress patterns shown in...Ch. 13 - Explain whether it would be practical to apply the...Ch. 13 - Describe the factors that influence the magnitude...Ch. 13 - Explain how you would go about applying front and...Ch. 13 - What typically is done to make sure that the...Ch. 13 - Make a list of parts that can be made by (a) shape...Ch. 13 - Describe the methods by which roll flattening can...Ch. 13 - It was stated that spreading in flat rolling...Ch. 13 - Flat rolling can be carried out by front tension...Ch. 13 - Explain the consequence of applying too high a...Ch. 13 - Note in Fig. 13.3f that the driven rolls (powered...Ch. 13 - Describe the importance of controlling roll...Ch. 13 - In Fig. 13.9a, if you remove the top compressive...Ch. 13 - Name several products that can be made by each of...Ch. 13 - List the possible consequences of rolling at (a)...Ch. 13 - It is known that in thread rolling, as illustrated...Ch. 13 - If a rolling mill encounters chatter, what process...Ch. 13 - Can the forward slip ever become negative? Why or...Ch. 13 - In Example 13.1, calculate the roll force and the...Ch. 13 - Calculate the individual drafts in each of the...Ch. 13 - Estimate the roll force, F, and the torque for an...Ch. 13 - A rolling operation takes place under the...Ch. 13 - Estimate the roll force and power for annealed...Ch. 13 - A flat-rolling operation is being carried out...Ch. 13 - A simple sketch of a four-high mill stand is shown...Ch. 13 - Obtain a piece of soft, round rubber eraser, such...Ch. 13 - If you repeat the experiment in Problem 13.45 with...Ch. 13 - Design a set of rolls to produce cross-sections...Ch. 13 - Design an experimental procedure for determining...Ch. 13 - Derive an expression for the thickest workpiece...
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- 7) Which of the following types of stresses are induced in the stretch forming process? Tensile only. OCompressive only. A combination of tensile and compressive stresses. A combination of tensile, compressive and shear stressesarrow_forwardWhy are guidelines drawn on the surface of a free-bend specimen?arrow_forwardSheet Forming Processes; V-Bending of Sheets is more expensive than Edge Bending. (T or F)In Metal Forming Processes there are 2 Basic Categories; Bulk Deformation Sheet Metalworking (T or F)In Sheet Metalworking there are 3 types of processes used; Bending Drawing Cutting (T or F)An Advantage of Hot Rolling is the process produces a final product with Small Tolerances (T or F)Direct Extrusion produces Hollow or Semi-Hollow types of Cross-Sections. (T or F)Designing a metal sheet product in the elastic zone of the Stress-Strain curve gives a longer life cycle for the products service (T or F)In the Bulk Deformation, Drawing Process, there is Tension Residual Strain. (T or F)Hot Rolling metal prevents residual stresses from building up in the made product (T or F)arrow_forward
- 3) Which of the below statements is/are correct regarding deep drawing process? i. If the clearance between the punch and the die is less than the thickness produced by free thickening, the metal in these regions will be squeezed, or ironed. ii. The force on the punch required to produce a cup is the summation of the ideal force of deformation, the frictional forces, and the force required to produce ironing (if present). i only ii only Both i and ii None of the abovearrow_forward1 What is the difference between open-die and closed-die forging? Give an example of a metal product produced by each process.arrow_forwardI need Answer & Explanation In Handwritten Format. Take time ,No hurry.arrow_forward
- Questions: 1. Two thick slabs of 300mm each, the first one is used in cold rolling where u=0.08 while the second is used in cold rolling where u-0.5. The mill roll diameter in each case is the same as 600mm. Determine the max draft (reduction) in both cases. Discuss the wide difference in results. = 2. A tensile specimen of the metal of 100 mm is length stretched to a length 157 mm during the rolling process. If the metal has a flow curve with parameters: K = 850 MPa and strain hardening exponent n = 0.30. Determine the average flow stress that the metal has been subjected to during the deformation.arrow_forwardA compound die is used to blank and punch a large washer out of 6061ST aluminum alloy sheet stock 3.2 mm thick. The outside diameter of the washer is 25.0 mm, and the inside diameter is 12.0 mm. Determine (a) the punch and die sizes for the blanking and punching operations, (b) the force required to perform the blanking and punching operation under the following conditions: (a) blanking and punching occur simultaneously and (b) the punches are staggered so that punching occurs first, then blanking. The aluminum has a tensile strength = 350 MPa.arrow_forwardI need the answer as soon as possiblearrow_forward
- Question 5 5.1 Calculate the final bend radius for a 3 mm thick 6061 T6 aluminum plate that is formed using a forming punch with an 8 mm radius, as shown in Figure 3. R 8 Figure 3: Bend profile that is formed using a V-block die and a punch with a 8 mm radius 5.2 Explain why there would be a difference between the initial and final bend radius during the bending process and how this occurrence depends upon material properties, sheet thickness and the bend radius.arrow_forwardForging processes may be characterized by die work limitation. This categorization yields three basic types.arrow_forwardNonearrow_forward
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