EBK MANUFACTURING ENGINEERING & TECHNOL
7th Edition
ISBN: 9780100793439
Author: KALPAKJIAN
Publisher: YUZU
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Chapter 25, Problem 37QTP
A machining-center spindle and tool extend 10 in. from their machine-tool frame. Calculate the temperature change that can be tolerated in order to maintain a tolerance of 0.001 in. in machining. Assume that the spindle is made of steel.
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Solve the math in a detailed way
A number of through holes with 10-mm-diameter have been drilled through 30-mm thick cast iron plate. At a
cutting speed of 25 m/min, the high-speed steel drill tool lasted for 44 holes. But, when the cutting speed
increased to 35 m/min, the drill tool lasted for only five holes. The feed used in the both cases is 0.08 mm/rev.
Determine the values of n and Cin the Taylor tool life equation for the data, where cutting speed v is expressed
in m/min, and tool life T is expressed in min.
Question 3.
A cemented carbide tool is used to turn a part with length = 18.0 in and diameter = 3.0
in. The parameters in the Taylor equation are: n= 0.27 and C = 1200. The rate for the
operator and machine tool = $33.00/hr, and the tooling cost per cutting edge = $2.00.
It takes 3.0 min to load and unload the workpart and 1.50 min to change tools. The feed
= 0.013 in/rev. Determine:
a) Cutting speed for maximum production rate,
b) Tool life in min of cutting, and
c) Cycle time and cost per unit of product.
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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