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 17RQ
Explain how controlled movements of the work m three mutually perpendicular directions are obtained m column-and-knee-type milling machines.
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Determine the machining time for plain milling a rectangular surface of length 100 mm and
width 50 mm by a helical fluted plain HSS milling cutter of diameter 50 mm,
length 75 mm and 10 teeth. Assume A = O = 5 mm, VC = 40 m/min and so = 0.1
mm/tooth.
H.W.
The face milling cutter of D= 200 mm used to cut a block which is 200 mm = H, 1=480 mm, if f=
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the machining time.
thickness is HW3.A block of steel has a length L-600mm and a width W-450mm. The
Machined 10mm, once by Peripheral Milling and once by planing Machine.Calculate
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For peripheral milling: cutting speed V =80 m/min, Feed f-0.15mm/rev, the cutter .1
diameter D =50 mm with five teeth and depth of cut d =3mm
For planing: clearance on both sides
c =25mm, cutting speed V =36.56 m/min, retum to .2
cutting ratio m =0.25, feed f=5 mm/stroke and depth of cut d =5 mm
.Calculate Material removal rate in both processes .3
Solution
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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