|
TABLE 15: SURFACE GRINDING OF NIOBIUM
|
WHEEL
SPEED
fpm
(m/s)
|
TABLE
SPEED
fpm
(m/min)
|
DOWNFEED
in/pass
(mm/pass)
|
CROSSFEED
in/pass
(mm/pass)
|
WHEEL
IDENTIFICATION
ANSI
(ISO)
|
|
2000 — 4000
|
40 — 60 |
Rough: 0.001
Finish: 0.0005 max
|
0.020 — 0.200
max=1/12 of wheel width
|
A46JV |
|
(10 — 20)
|
(12 — 18)
|
(Rough: 0.025)
(Finish: 0.013 max)
|
(0.5 — 5.0)
(max=1/12of wheelwidth)
|
(A46JV) |
TABLE 16: CYLINDRICAL GRINDING OF NIOBIUM
|
WHEEL
SPEED
fpm
(m/s)
|
WORK
SPEED
fpm
(m/min)
|
INFEED
On Diameter
in/pass
(mm/pass)
|
TRAVERSE
wheel width per
revolution of
work
|
WHEEL
IDENTIFICATION
ANSI
(ISO)
|
|
4000 |
50 — 100
|
Rough: 0.001
Finish: 0.0003 max
|
1/5 — 1/10
|
A60KV |
|
(20) |
(15 - 30) |
(Rough: 0.025)
(Finish: 0.008max)
|
(1/5 — 1/10)
|
(A60KV) |
TABLE 17: INTERNAL GRINDING OF NIOBIUM
|
WHEEL
SPEED
fpm
(m/s)
|
WORK
SPEED
fpm
(m/min)
|
INFEED
On Diameter
in/pass
(mm/pass)
|
TRAVERSE
wheel width per
revolution of work
|
WHEEL
IDENTIFICATION
ANSI
(ISO)
|
|
4000 |
50 — 150
|
Rough: 0.001
Finish: 0.0005 max
|
1/3 — 1/6
|
A60JV |
|
(20) |
(15 - 46) |
(Rough: 0.025)
(Finish: 0.013max)
|
(1/3 — 1/6)
|
(A60JV) |
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