Metal Machining - Theory and Applications Episode 1 Part 4 pot
Metal Machining - Theory and Applications Episode 1 Part 4 pot
... 2.5 ≈ 4. 0 ≈ 2.2
k/
ρ
C 11 0–220 85 14 0 50 16 0 12 0–200 220–320
∆T
1
[°C]
a
230 47 0 18 0–300 11 0– 340 250 43 0 47 0–680
K
work
[W/m K] 25 45 10 0 40 0 10 0–300 15 –20 6 15
K
tool
b
[W/m K] 20–50 80 12 0 10 0–500 ... al. (19 72)
Brass/carbide 30 48 0.3 45 0 0.9 0.95 Shirakashi and Usui (19 73)
C steel/carbide 10 46 0.3 600 1. 3 0.8 Shirakashi and Usui (19 73)
Low all...
Metal Machining - Theory and Applications Episode 1 Part 5 potx
... Carbide
CVD coated 0.2–0.5 3–7 1. 2 1. 9 2.8 1. 8
Ground 0 .1 0.25 2 4 1. 2 1. 9 2.8 1. 8
Super-finished 0.03 0 .4 1. 2 1. 9 2.8 1. 8
Childs Part 1 28:3:2000 2:38 pm Page 73
2 .4. 3 Wear in metal cutting
Finally, ... in metal
cutting. Trans ASME J. Eng. Ind. 81B, 2 51 262.
Lee, E. H. and Shaffer, B. W. (19 51) The theory of plasticity applied to a problem of machining....
Metal Machining - Theory and Applications Episode 1 Part 3 pot
... 2 .12 A range of possible rake face contact pressure distributions
σ
n
/
k
, for
α
= 0º,
φ
= 10 º and
λ
= 35º and
n
=
(a) 1/ 2, (b) 1/ 3 and (c) 1/ 6
Childs Part 1 28:3:2000 2:36 pm Page 52
2 .1( b)). ... in air and CCl
4
atmos-
pheres at cutting speeds from 1 to 10 0 m/min, at feeds between 0 .1 and 0.25 mm and with
cutting tools of rake angle 6˚ to 40 ˚. At...
Metal Machining - Theory and Applications Episode 1 Part 10 ppt
... Section 6 .4. 8.
Non-orthogonal (three-dimensional) machining 18 1
Fig. 6 .15 Uncut chip cross-sections in single point turning: (a) case 1, (b) case 2, (c) case 3 and (d) case 4
(a)
Childs Part 2 28:3:2000 ... h
c
Non-orthogonal (three-dimensional) machining 18 7
Childs Part 2 28:3:2000 3 :13 pm Page 18 7
18 2 Advances in mechanics
(b)
(c)
Fig. 6 .15
continued
Childs Part...
Metal Machining - Theory and Applications Episode 1 Part 9 pptx
... Smart, E. F. and Milner, D. (19 70) The metallurgy of machining, Part 1. Metallurgia
81, 3 10 .
15 8 Experimental methods
Childs Part 2 28:3:2000 3 :11 pm Page 15 8
Over the exit boundaries BD and DA′, ... Emission 3, 10 8 11 6.
Miwa, Y., Inasaki, I. and Yonetsu, S. (19 81) In-process detection of tool failure by acoustic emission
signal. Trans JSME 47 , 16 80 16 89.
Reichen...
Metal Machining - Theory and Applications Episode 1 Part 8 ppsx
... sintered steel and
Inconel 718
0.05
0.02
0 .1 0.2 0.5 1. 0 2.0
5
10
20
40
60
80
99
85
Flank wear VB (mm)
P10
Sintered steel
P10
B 111 2
TiC-Al
2
O
3
ceramic
Inconel 718
VB
max
B 112 - P10, V = 200m/min, ... of
13 4 Tool damage
10 00 2000 5000 10
4
2x10
4
5x10
4
99
90
70
50
30
10
3
1
Machine tool A
Machine tool B
Numbers of impact until tool fracture
Cutting speed...
Metal Machining - Theory and Applications Episode 1 Part 7 ppt
... (min)
15 0 m min
-1
15 0 m min
-1
236 m min
-1
Turning
Milling
236 m min
-1
Crater depth ( µm)
Depth of cut :1. 0mm Feed rate: 0.2 mm rev
-1
Flank wear (mm)
Fig. 4. 8 Comparisons of wear when milling and ... turning a 0 .45 % carbon steel with a P10 cemented carbide tool,
after Yamane and Narutaki (19 83)
d :1. 0 mm, f: 0.2 mm tooth
-1
Real cutting time: 1. 9 mi...
Metal Machining - Theory and Applications Episode 1 Part 6 pdf
... [MJ/m
3
] [10
–6
K
1
] [GPa] [°C]
Diamond 600–2000 2.0 3 .1 960–990 –
PCD 10 0–550 2.0** 3.8 4. 2 620– 840 14 0– 540
PcBN 10 0* 1. 9–2 .1 4. 7 4. 9 680– 710 15 0– 340
K-carbide 75 12 0 3.0–3 .4 4.5–6.0 550–650 ... [10
–6
K
1
] modulus [GPa] 10 0°C 10 00°C
TiC 7 .4 7.7 ≈ 45 0 24 33 38– 41
TiN 9 .4 ≈ 250 19 – 21 25–26
Al
2
O
3
8 .4 9.0 ≈ 40 0 20–28 6–7.5
WC-Co* 4. 5–6....
Metal Machining - Theory and Applications Episode 1 Part 2 pps
... 0.27
C
t
[£] 15 15 15
Fig. 1. 28 Times and costs to remove metal by milling, for the conditions i and ii of Table 1. 7 compared with remov-
ing the same metal by turning (- - -)
Childs Part 1 28:3:2000 ... 9 14 7–8 Machine dependent, for
∅25 30–60 13 –20 example 10 min for
10 0 10 0–250 30–60 mechanical machine; 5 min
solid carbide ∅6 18 –33 14 17 for simp...
Metal Machining - Theory and Applications Episode 1 Part 1 potx
... in machining 82
3.2 Tool materials 97
References 11 7
4 Tool damage 11 8
4 .1 Tool damage and its classification 11 8
4. 2 Tool life 13 0
4. 3 Summary 13 4
References 13 5
5 Experimental methods 13 6
5 .1 ... 1
Contents
Preface vii
1 Introduction 1
1 .1 Machine tool technology 3
1. 2 Manufacturing systems 15
1. 3 Materials technology 19
1. 4 Economic optimiz...
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