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 15RQ
Make some sketches to show how you would you set up a plain column-and-knee milling machine to make it suitable for milling the top and sides of a large block.
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What is the feed speed (mm/min) of an end milling cutter if it mills a distance of 300 mm in ten minutes? What is the feed per tooth if it is rotating at 800 rpm?
A surface of 43 mm x 246 mm will be machined by using a shaper and 7 mm
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strokes/minute and feed is 0.7 mm/stroke. If the maximum stroke length is 827
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Expert Q&A
Done
The top surface of a rectangular workpart is machined using a peripheral milling
operation. The workpart is 735 mm long by 50 mm wide by 95 mm thick. The milling
cutter, which is 60 mm in diameter and has five teeth, overhangs the width of the
part equally on both sides. Cutting speed = 80 m/min, chip load = 0.30 mm/tooth,
and depth of cut = 7.5 mm. (a) Determine the time required to make one pass across
the surface, given that the setup and machine settings provide an approach distance
of 5 mm before actual cutting begins and an overtravel distance of 25 mm after
1.2
9.
20
65
73
actual cutting has finished
v in seconds. (b) What is the maximum material
3.9
239
removal rate during the cut
v in mm3/sec?
0.127
5
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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