Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Chapter 13, Problem 7RQ
Why may roller leveling be a necessary operation?
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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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- Will a single-cut or a double-cut file produce a smoother surface?arrow_forwardWhat is the operation of parting?arrow_forwardMajor metal forming processes include ______ a rolling to reduce the thickness for making metal sheets, strips, bars, structure shapes, and pipes. b forging to produce parts with higher strength c extrusion to produce hollow shapes, and shapes with muliple longitudinal cavities. d all of the above.arrow_forward
- What is friction?arrow_forward38 - A blanking operation is to be performed on 8.0 mm thick soft cold rolled steel. The part is circular with diameter% D 90.0 mm. Determine the appropriate punch size for this operation (Punch diameter = Db - 2c) %3D Clearance allowance value for Metal Group 1100S and 5052S aluminum alloys, all tempers Ac 0.045 2024ST and 6061 ST aluminum 0.060 alloys; brass, all tempers; soft cold- rolled steel, soft stainless steel Cold-rolled steel, half hard; stainless steel, half-hard and full- hard 0.075 a) 98,20 b) 89.04 88,80 82.70 e) 74,76arrow_forwardWhich three of the following are basic bulk deformation processes in metal forming: forging bar drawing extrusion stamping blanking deep drawingarrow_forward
- Which of the following metal forming processes is best suitable for making the cup shaped products? a. Rolling O b. Forging O c. Drawing O d. Extrusionarrow_forwardcharactaristics and examples of polishing in manufcturing processes?arrow_forwardAluminium and copper wires can be made by cold drawing process. Select one: True False Planing operation is an example of ________________ Crushing is an example of ____________arrow_forward
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