Degarmo's Materials And Processes In Manufacturing
13th Edition
ISBN: 9781119492825
Author: Black, J. Temple, Kohser, Ronald A., Author.
Publisher: Wiley,
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Textbook Question
Chapter 24, Problem 7RQ
Which type of milling (up or down) is being done in Figures-24.1b, 24.1d, 24.2b, 24.10, and 24.12?
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Find the machining time to complete the job as shown below from the basic raw material of 50 mm
diameter and 100 mm length. Assume the following data: cutting speed for turning and boring = 25
m/min, feed for turning and boring = 0.5 mm/rev, cutting speed for drilling = 20 m/min, feed for drilling
= 0.25 mm/rev, depth of cut not to exceed = 5 mm?
40
25
20
20
20
20
Please answer and show working and label each part
A cylindrical mild steel work piece of Ø55 X 200mm undergoes a turning operation on a lathe machine to
reduce the diameter to Ø 45mm. The cutting parameters are 23 m/minute, 0.3 mm/ revolution and 0.5
mm are cutting speed, feed and depth of cut respectively.
Determine the following.
i) Time for single pass (minutes).
ii) Find number of passes required to reduce the diameter from Ø55 to Ø45mm.
iii) Total time required to complete the turning operation in minutes (Tfinal).
Chapter 24 Solutions
Degarmo's Materials And Processes In Manufacturing
Ch. 24 - Suppose that you wanted to machine cast iron with...Ch. 24 - How is the feed per tooth related to the feed rate...Ch. 24 - Why must the number of teeth on the cutter be...Ch. 24 - Why is the question of up or down milling more...Ch. 24 - For producing flat surfaces in mass-production...Ch. 24 - Milling has a higher metal removal rate than...Ch. 24 - Which type of milling (up or down) is being done...Ch. 24 - Why does down milling dull the cutter more rapidly...Ch. 24 - What parameters do you need to specify in order to...Ch. 24 - In Figure 24.2b, the tool material is carbide....
Ch. 24 - What is the advantage of a helical-tooth cutter...Ch. 24 - What would the cutting force diagram for Fc look...Ch. 24 - Could the stub arbor-mounted face mill shown in...Ch. 24 - In a typical solid arbor milling cutter shown in...Ch. 24 - Make some sketches to show how you would you set...Ch. 24 - Make some sketches to show how you would set up a...Ch. 24 - Explain how controlled movements of the work m...Ch. 24 - Prob. 18RQCh. 24 - What is the purpose of the hole-circle plate on a...Ch. 24 - You have selected a feed per tooth and a cutting...Ch. 24 - How much time will be required for a milling...Ch. 24 - If the depth of cut is 0.35 in., what is the metal...Ch. 24 - Prob. 4PCh. 24 - Calculate the spindle rpm and table feed (ipm) for...Ch. 24 - A gray cast iron surface 6 in. wide and 18 in....Ch. 24 - Prob. 7PCh. 24 - In Figure 24.12, the feed is 0.006 in. per tooth....Ch. 24 - Suppose you want to do the job described in...Ch. 24 - The Bridgeport vertical-spindle milling machine is...Ch. 24 - The KC Machine Works, which does job shop...
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