EBK MANUFACTURING ENGINEERING & TECHNOL
7th Edition
ISBN: 8220100793431
Author: KALPAKJIAN
Publisher: PEARSON
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Textbook Question
Chapter 25, Problem 35QLP
Describe workpieces that would not be suitable for machining on a machining center. Give specific examples.
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6) It has been stated that it is generally undesirable to allow temperatures to rise
excessively in machining operations. Explain why.
7) Explain the possible disadvantages of a machining operation if a discontinuous
chip is produced.
8) List and explain the factors that contribute to poor surface finish in machining
operations
9) Given your understanding of the basic machining process, describe the important
physical and chemical properties of a cutting tool.
Broadly define what machining processes are.
Chapter 25 Solutions
EBK MANUFACTURING ENGINEERING & TECHNOL
Ch. 25 - Describe the distinctive features of machining...Ch. 25 - Explain how the tooling system in a machining...Ch. 25 - Explain the trends in materials used for...Ch. 25 - Is there any difference between chatter and...Ch. 25 - What are the differences between forced and...Ch. 25 - Explain the importance of foundations in...Ch. 25 - Explain why automated pallet changers and...Ch. 25 - What types of materials are machine-tool bases...Ch. 25 - What is meant by the modular construction of...Ch. 25 - What is a hexapod? What are its advantages?
Ch. 25 - What factors contribute to costs in machining...Ch. 25 - List the reasons that temperature is important in...Ch. 25 - Explain the technical and economic factors that...Ch. 25 - Spindle speeds in machining centers vary over a...Ch. 25 - Explain the importance of stiffness and damping of...Ch. 25 - Are there machining operations described in...Ch. 25 - How important is the control of cutting-fluid...Ch. 25 - Review Fig. 25.10 on modular machining centers,...Ch. 25 - Prob. 19QLPCh. 25 - Describe the adverse effects of vibration and...Ch. 25 - Describe some specific situations in which thermal...Ch. 25 - Prob. 22QLPCh. 25 - Prob. 23QLPCh. 25 - Prob. 24QLPCh. 25 - List the parameters that influence the temperature...Ch. 25 - List and explain factors that contribute to poor...Ch. 25 - Prob. 27QLPCh. 25 - Prob. 28QLPCh. 25 - Describe types and sizes of workpieces that would...Ch. 25 - Prob. 30QLPCh. 25 - Explain the advantages and disadvantages of...Ch. 25 - What are the advantages and disadvantages of (a)...Ch. 25 - What would be the advantages and limitations of...Ch. 25 - Explain how you would go about reducing each of...Ch. 25 - Describe workpieces that would not be suitable for...Ch. 25 - Give examples of forced vibration or self-excited...Ch. 25 - A machining-center spindle and tool extend 10 in....Ch. 25 - Using the data given in the example, estimate the...Ch. 25 - A machining-center spindle and tool extend 12 in....Ch. 25 - In the production of a machined valve, the labor...Ch. 25 - Estimate the optimum cutting speed in Problem...Ch. 25 - Prob. 42QTPCh. 25 - If you were the chief engineer in charge of the...Ch. 25 - Prob. 45SDPCh. 25 - Make a list of components of machine tools that...Ch. 25 - The cost of machining and turning centers is...Ch. 25 - Prob. 49SDPCh. 25 - Describe your thoughts on whether or not it is...Ch. 25 - Prob. 51SDPCh. 25 - Prob. 53SDP
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- In an orthogonal machining with a tool of 9 degree orthogonal rake angle, the uncut chip thickness is 0.2mm. The chip thickness fluctuates between 0.25 mm and 0.4 mm. The ratio of the maximum shear angle to the minimum shear angle during machining isarrow_forwardIn an orthogonal machining with a tool of 9 orthogonal rake angle, the uncut chip thickness is 0.2 mm. The chip thickness fluctuates between 0.25 mm and 0.4 mm. The ratio of the maximum shear angle to the minimum shear angle during machining isarrow_forwardCalculate the machining time intervals for face milling a cutter 10 inches long, 2 inches wide, with a depth of cut of 0.1 inch for the following workpiece materials: (a) low-carbon steel ; (b) titanium alloys; (c) aluminum alloys, and (d) thermoplastics.arrow_forward
- Discuss the impact of current and voltage on machining characteristics in EDM in detailarrow_forwardWhat is surface roughness? Surface finish is one of the most important measures for determining the quality of products in machining. Explain in some details.arrow_forwardIdentify some of the reasons why machining is commercially and technologically important.arrow_forward
- Title It has been stated that it is generally undesirable to allow temperatures to rise excessively in... Description It has been stated that it is generally undesirable to allow temperatures to rise excessively in machining operations. Explain why. By the student. This is an open-ended problem with a large number of acceptable answers. The consequences of allowing temperatures to rise to high levels in cutting include: (a) Tool wear will be accelerated due to high temperatures. (b) High temperatures will cause dimensional changes in the workpiece, thus reducing dimensional accuracy. (c) Excessively high temperatures in the cutting zone may induce metallurgical changes and cause thermal damage to the machined surface, thus affecting surface integrity.arrow_forwardFor the following application, identify one or more nontraditional machining processes that might be used, and present arguments to support your selection. Assume that either the part geometry or the work material (or both) preclude the use of conventional machining. The application is a through-hole in the shape of the letter L in a 12.5 mm (0.5 in) thick plate of glass. The size of the "L" is 25 by 15 mm (1.0 by 0.6 in) and the width of the hole is 3 mm (1/8 in).arrow_forwardDetermine the total machining time for a workpiece 30mm in diameter and the required length is 145 mm. Other data: Material: 38mm dia. X 149 mm Depth of cut (turning): 4mm Depth of cut (facing): 2mm Feed : 0.05 mm/rev : 35 SMPM Cutting speedarrow_forward
- What are Commercial-Scale and Small-Scale Milling Systems? Give examples for each.arrow_forwardhand write asap ( i'll give you multiple upvotearrow_forwardEstimate the machining time that will be required to finish a vertical flat surface of length 100 mm and depth 20 mm by an end mill cutter of 32 mm diameter and 60 mm length in a milling machine. Assume cutting speed of 30 m/min and feed of 0.12 mm/tooth. Let over run distance equal to approach distance.arrow_forward
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