DeGarmo's Materials and Processes in Manufacturing
12th Edition
ISBN: 9781118987674
Author: J. T. Black, Ronald A. Kohser
Publisher: WILEY
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Question
Chapter 24, Problem 18RQ
To determine
The basic principle of a universal dividing head.
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Statics Problem !!!
Help me part D!!!! Answer it this Problem Correctly!! Please give correct Solution
λ=
te average
Vc =
MDN
1000
T = S sin
Where λ is Chip Reduction Coefficient
Vc is cutting speed
te is thickness of cut chip
T is thickness of non-cut chip
S is feed rate
Ⓒ is cutting angle = 45⁰
D is diameter of workpiece = 40mm
Results
m/min
Depth of
cut (a)
mm
22222
Cutting
speed
(Vc)
m/min
500
500
500
500
500
Feed rate
(S)
mm/rev
Required:
1.Complete the solution to the table
with the given rules
2-Draw chart between feed rate (S) and chip
reduction coefficient
2
tc:
tc₂
tcs
0.11
0.39 0.58 0.43
0.14
0.42 0.62 0.5
0.20
0.34 0.42 0.32
0.24
0.9 0.96 0.95
0.28 0.92 0.85 0.85
te average
(mm)
T
(mm)
with discuss it.
Chip
Reduction
Coefficient
(2)
High accuracy cutting is very important in modern machining processes. This study is focus in
modern machining process of EDM wire cutting with diameter wire 0.25 mm (Brass), material
aluminum with thickness 10 mm and initial spark gap recommended is 50 microns. By applying the
assumption value of size desired 60 mm (X, Y) and output size 59.984 (X axis) and 60.012 (Y axis).
Complete the value of (A,B,C,D,E and F) in design of experimental (DOE) as in table1 and explain
the result outcome methods.
Table 1: Design of experimental (DOE) table
Size
Trial
output size
size of
% error
True or actual
desired
spark
(mm)
measurement
of
spark or gap
gap
error (mm) / side
overall
(mm)
(mm)
size
A
B
D
E
F
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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