|
TABLE 8: SIDE AND SLOT MILLING OF NIOBIUM
| |
|
Carbide Tool |
|
|
High
Speed
Steel Tool
|
|
| DEPTH
OF CUT
in
(mm)
|
TOOL
MATERIAL
AISI
(ISO)
|
SPEED
fpm
(m/min)
|
FEED
PER TOOTH
in
(mm)
|
TOOL
MATERIAL
AISI
(ISO)
|
SPEED
fpm
(m/min)
|
FEED
PER TOOTH
in
(mm)
|
| 0.040
|
C-2
|
150-180
|
0.005
|
T15,
M42 |
135
|
0.005
|
| 0.150
|
C-2
|
140-170
|
0.006
|
T15,
M42 |
125
|
0.006
|
| 0.300
|
C-2
|
130-160
|
0.007
|
T15,
M42 |
115
|
0.007
|
| (1.0)
|
(K10,
M20) |
(46-55)
|
(0.15)
|
(S9,
S11) |
(41)
|
(0.13)
|
| (4.0)
|
(K10, M20) |
(43-52)
|
(0.18)
|
(S9,
S11) |
(38)
|
(0.15)
|
| (8.0)
|
(K10,
M20) |
(40-49)
|
(0.20)
|
(S9,
S11) |
(35)
|
(0.18)
|
TABLE 9: END MILLING OF NIOBIUM
| AXIAL
|
|
|
FEED
|
| DEPTH
|
TOOL
|
|
in/tooth
|
| OF
CUT |
MATERIAL
|
SPEED
|
(mm/tooth)
|
| |
|
|
Width
of Slot |
| In
|
AISI
|
fpm
|
3/8
in |
_
in |
_
in |
1-2
in |
| (mm)
|
(ISO)
|
(m/min)
|
(10mm)
|
(12mm)
|
(18mm)
|
(25-50mm)
|
| 0.030
|
T15,
M42 |
60
|
.0007
|
.001
|
.0015
|
.002
|
| 0.060
|
T15,
M42 |
55
|
.0005
|
.0015
|
.002
|
.003
|
| dia/4
|
T15,
M42 |
50
|
---
|
.001
|
.0015
|
.002
|
| (0.75)
|
(S9,
S11) |
(18)
|
(.018)
|
(.025)
|
(.038)
|
(.050)
|
| (1.5)
|
(S9,
S11) |
(17)
|
(.013)
|
(.038)
|
(.050)
|
(.075)
|
| (dia/4)
|
(S9,
S11) |
(15)
|
---
|
(.025) |
(.038)
|
(.050)
|
TABLE 10: THREAD MILLING OF NIOBIUM
| TOOL
MATERIAL |
SPEED
|
FEED
|
| AISI
|
fpm
|
in/tooth/rev
|
| (ISO)
|
(m/min)
|
(mm/tooth/rev)
|
| M2,
M7 |
60
|
0.0015
|
| (S4,
S2) |
(18)
|
(0.038)
|
Five of Eleven 1
2 3
4 5 6
7 8
9 10
11
|
