Metal Machining - Theory and Applications Episode 1 Part 7 ppt
Metal Machining - Theory and Applications Episode 1 Part 7 ppt
... and has been studied over many years, by Dawihl (19 41) ,
Trent (19 52), Trigger and Chao (19 56), Takeyama and Murata (19 63), Gregory (19 65),
Cook (19 73 ), Uehara (19 76 ), Narutaki and Yamane (19 76 ), ... (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...
Metal Machining - Theory and Applications Episode 1 Part 10 ppt
... 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 2 28:3:2000 3 :13 pm Page 18 2
is ... 19 78 ;
Usui and Hirota, 19 78 ; Arsecularatne et al., 19 95). This section introduces the further
Non-orthogonal (three-dimensional) machining 17 7
Childs Part 2...
Metal Machining - Theory and Applications Episode 1 Part 9 pptx
... Palmer and Oxley
(19 59), and (b) Roth and Oxley (19 72 )
Childs Part 2 28:3:2000 3 :12 pm Page 16 9
Harris, A., Hastings, W. F. and Mathew, P. (19 80) The experimental measurement of cutting temper-
ature. ... Nakayama, K. (19 98) The temperature of a single crystal diamond tool in
turning. Annals CIRP 47 (1) , 41 44.
Williams, J. E, Smart, E. F. and Milner, D. (19 70 ) The...
Metal Machining - Theory and Applications Episode 2 Part 7 ppt
... Trans. on Auto. Cont. 19 ,
71 6 72 2.
ASM (19 90) Classification and designation of carbon and low-alloy steels. In ASM Handbook 10 th
edn. Vol. 1, 14 0 19 4. Ohio: American Society of Metals.
324 Process ... CIRP
37( 2), 611 –622.
Trigger, K. J. and Chao, B. T. (19 56) The mechanism of crater wear of cemented carbide tools.
Trans. ASME. 78 , 11 19 11 26.
Usui, E., Shirakashi, T...
Metal Machining - Theory and Applications Episode 1 Part 8 ppsx
... sintered steel and
Inconel 71 8
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 71 8
VB
max
B 112 - P10, V = 200m/min, ... 78 ,11 19 11 26.
Uehara, K. (19 76 ) On the generating mechanism of wear particles on carbide cutting tools. J. Japan
Soc. Prec. Eng. 42(6), 445–452.
Usui, E., Shirakashi,...
Metal Machining - Theory and Applications Episode 1 Part 6 pdf
... K]
α
e
Young’s
Material [10
–6
K
1
] modulus [GPa] 10 0°C 10 00°C
TiC 7. 4 7. 7 ≈ 450 24–33 38– 41
TiN 9.4 ≈ 250 19 – 21 25–26
Al
2
O
3
8.4–9.0 ≈ 400 20–28 6 7. 5
WC-Co* 4.5–6.0 550–650 75 12 0 50 75
WC-TiC-TaC-Co* 5.8–6.8 ... 390–840
Cermet 11 –35 2.4–2 .7 6 .7 7. 8 390–420 480 74 0
Al
2
O
3
10 –35 3.2–3.6 7. 9–8.0 380–390 14 5–330
Al
2
O
3
/TiC 10 –22 3.8–4.0 7. 6–8.0 370...
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, ... E. Lond. 18 6,
71 7 72 7.
Childs, T. H. C. (19 80a) Elastic effects in metal cutting chip formation. Int. J. Mech. Sci. 22,
4 57 466.
Childs, T. H. C. (19 80b)...
Metal Machining - Theory and Applications Episode 1 Part 4 pot
... 2.2
k/
ρ
C 11 0–220 85 14 0 50 16 0 12 0–200 220–320
∆T
1
[°C]
a
230– 470 18 0–300 11 0–340 250–430 470 –680
K
work
[W/m K] 25–45 10 0–400 10 0–300 15 –20 6 15
K
tool
b
[W/m K] 20–50 80 12 0 10 0–500 80 12 0 50 12 0
K* ... al. (19 72 )
Brass/carbide 30 48 0.3 450 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 a...
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)). ... ferrous and
non-ferrous chips observed through a microscope at about five times magnification (Figure
Fig. 2 .1 Early chip observations by (a) Tresca (18 78 ) and (b...
Metal Machining - Theory and Applications Episode 1 Part 2 pps
... 0.092
M
w
[£/min] 0. 27 0. 27 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 ... x 12 x 4 3.00–6.00 1. 10 1. 90 for insert tooling on turning
25 x 25 x 7 9.00 11 .20 2.65–3.20 centre
ceramic insert, plain
12 x 12 x 4 4.50...