EBK MANUFACTURING ENGINEERING & TECHNOL
7th Edition
ISBN: 8220100793431
Author: KALPAKJIAN
Publisher: PEARSON
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Chapter 25, Problem 39QTP
A machining-center spindle and tool extend 12 in. from its machine-tool frame. What temperature change can be tolerated to maintain a tolerance of 0.0001 in. in machining? A tolerance of 0.001 in.? Assume that the spindle is made of steel.
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A mild steel specimen of Initial diameter of 30.5 mm is turned to final diameter of 27 mm for an initial length of 153 mm on a lathe machine.
Using the given data find the following.
(i) Feed of 0.4 mm/rev & Depth of cut is 0.5 mm
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(iii) Time required to complete one single turning operation is 3.5 minutes
(a)Find number of passes to finish the entire turning operation
(b) Total time required to complete the turning operation in minutes
A mild steel specimen of Initial diameter of 30.5 mm is turned to final diameter of 27 mm for an initial length of 153 mm on a lathe machine.
Using the given data find the following.
(i) Feed of 0.4 mm/rev & Depth of cut is 0.5 mm
(ii)During machining the tool's approach length is 5 mm, over run length is 2mm
(iii) Time required to complete one single turning operation is 3.5 minutes
(c) Spindle speed in in rpm (=
(d) Cutting speed in m/minutes(=
A mild steel specimen of Initial diameter of 32.5 mm is turned to final diameter of 25 mm for an initial length
of 154 mm on a lathe machine.
Using the given data find the following.
(i) Feed of 0.3 mm/rev & Depth of cut is 0.5 mm
(ii)During machining the tool's approach length is 6 mm, over run length is 3mm
(iii) Time required to complete one single turning operation is 2.3 minutes
(a)Find number of passes to finish the entire turning operation
(b) Total time required to complete the turning operation in minutes
(c) Spindle speed in in rpm
(d) Cutting speed in m/minutes
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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- Nonearrow_forwardlathe machine has a constant failure rate and a mean time to failure of 10 years. What is the probability that the lathe machine will fail between 5 and 12 years after being installed?arrow_forwardA mild steel specimen of Initial diameter of 51.5 mm is turned to final diameter of 48 mm for an initial length of 151 mm on a lathe machine. Using the given data find the following. (i) Feed of 0.1 mm/rev & Depth of cut is 0.5 mm (ii) During machining the tool's approach length is 7 mm, over run length is 2mm (iii) Total time required to complete the turning operation is 48.8 minutes (a) Find number of passes to finish the entire turning operation (b) The actual length of the turning operation in mm ( (c)The time required to complete one single turning operation in minutes (d) Spindle speed in rpmarrow_forward
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