Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Textbook Question
Chapter 26, Problem 22QLP
Referring to the preceding chapters on processing of materials, list the operations in which burrs can develop on workpieces.
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(b)
A bending device with a double acting cylinder is us d to produce U-shaped sheet metal parts
as shown in Fig. 3(b). The start signal for this opr ation is given by a pushbutton and should
only be possible when the piston rod is fully retra ed. After the work piece has been shaped, a
second pushbutton is used to initiate the return s oke of the piston rod and this should only be
possible when the piston rod is fully exten d. The advance and return strokes must be
executed at a slow adjustable speed. Draw a possible electrohydraulic circuit solution to this
problem using indirect control of the cylinder. Ensure that you follow the basic rules for
constructing hydraulic circuit diagrams.
Fig. 3(b)
(a)
An engineer would like to drill a square hole of 20 mm x 20 mm with depth of
25 mm on a layered structure of natural fibre-reinforced polymer composite. He
encountered delamination problem in the workpiece (Figure 3) when he used
conventional cutting tool to drill the hole. Instead of using conventional
machining process, discuss ONE suitable advanced machining process that can
be applied for this machining purpose and predict TWO possible limitations for
the selected process.
Cutting
Tool
Delamination
Composite Material
Figure 3. Delamination of the composite material.
Explain the production of bolts by rubbing method by drawing a figure. Compare and write the advantages of machining with bolt manufacturing.
Chapter 26 Solutions
Manufacturing Engineering & Technology
Ch. 26 - What is an abrasive? What are superabrasives?Ch. 26 - How is the size of an abrasive grain related to...Ch. 26 - Why are most abrasives made synthetically?Ch. 26 - Describe the structure of a grinding wheel and its...Ch. 26 - Explain the characteristics of each type of bond...Ch. 26 - What causes grinding sparks in grinding? Is it...Ch. 26 - Define metallurgical burn.Ch. 26 - Define (a) friability, (b) wear flat, (c) grinding...Ch. 26 - What is creep-feed grinding and what are its...Ch. 26 - How is centerless grinding different from...
Ch. 26 - What are the differences between coated and bonded...Ch. 26 - What is the purpose of the slurry in...Ch. 26 - Explain why grinding operations may be necessary...Ch. 26 - Why is there such a wide variety of types, shapes,...Ch. 26 - Prob. 15QLPCh. 26 - The grinding ratio, G, depends on the type of...Ch. 26 - What are the consequences of allowing the...Ch. 26 - Explain why speeds are much higher in grinding...Ch. 26 - Prob. 19QLPCh. 26 - Prob. 20QLPCh. 26 - Prob. 21QLPCh. 26 - Referring to the preceding chapters on processing...Ch. 26 - Explain the reasons that so many deburring...Ch. 26 - What precautions should you take when grinding...Ch. 26 - Prob. 25QLPCh. 26 - What factors could contribute to chatter in...Ch. 26 - Prob. 27QLPCh. 26 - Prob. 28QLPCh. 26 - Describe the effects of a wear flat on the overall...Ch. 26 - What difficulties, if any, could you encounter in...Ch. 26 - Prob. 31QLPCh. 26 - Prob. 32QLPCh. 26 - Prob. 33QLPCh. 26 - Jewelry applications require the grinding of...Ch. 26 - List and explain factors that contribute to poor...Ch. 26 - Calculate the chip dimensions in surface grinding...Ch. 26 - If the strength of the workpiece material is...Ch. 26 - Assume that a surface-grinding operation is being...Ch. 26 - Estimate the percent increase in the cost of the...Ch. 26 - Assume that the energy cost for grinding an...Ch. 26 - It is known that, in grinding, heat checking...Ch. 26 - Prob. 45QTPCh. 26 - With appropriate sketches, describe the principles...Ch. 26 - Prob. 47SDPCh. 26 - Vitrified grinding wheels (also called ceramic...Ch. 26 - Conduct a literature search, and explain how...Ch. 26 - Visit a large hardware store and inspect the...Ch. 26 - Obtain a small grinding wheel or a piece of a...Ch. 26 - In reviewing the abrasive machining processes in...Ch. 26 - Obtain pieces of sandpaper and emery cloth of...Ch. 26 - On the basis of the contents of this chapter,...
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