|
TABLE 16: INTERNAL GRINDING OF ZIRCONIUM
|
WHEEL
SPEED |
WORK
SPEED |
INFEED
On Diameter
|
TRAVERSE
|
WHEEL
IDENTIFICATION
|
|
fpm |
fpm |
in/pass
|
wheel width per
|
ANSI |
|
(m/s)
|
(m/min)
|
(mm/pass)
|
revolution of work
|
(ISO)
|
|
3000 |
50 — 150
|
Rough: 0.0005
Finish: 0.0002 max
|
1/3 — 1/6
|
C80KV |
|
(15) |
(15 - 46) |
(Rough: 0.013)
(Finish: 0.005max)
|
(1/3 — 1/6)
|
(C80KV) |
TABLE 17: CENTERLESS GRINDING OF ZIRCONIUM
|
WHEEL SPEED
|
THRUFEED
OF WORK
|
INFEED
On Diameter
|
WHEEL
IDENTIFICATION
|
|
fpm |
in/min
|
in/pass
|
ANSI |
|
(m/s)
|
(m/min)
|
(mm/pass)
|
(ISO)
|
|
3000 |
50 — 150
|
Rough: 0.001
Finish: 0.0005 max
|
Rough: A60TB or CA60
RB
Finish: CA80PB
|
|
(15) |
(1.3 — 3.8)
|
(Rough: 0.025)
(Finish: 0.013 max)
|
(Rough: A60TB or CA60
RB)
(Finish: CA80PB)
|
Sawing
Power hacksawing is done most efficiently
with coarse (3T) high speed steel blades using a medium stroke
rate and a light feed rate. Band sawing is generally done
with a saw having a 0.042-inch raker set and a saw width of
0.50 inch, in conjunction with a flood of soluble lubricant
or an air stream to wash away the chips from the cut to give
satisfactory results. For cold circular sawing, teeth should
be alternately leveled and square, with the leveled teeth
slightly higher than the square. The cut and the saw blades
should be cooled with soluble coolant. Fine chips should be
removed from the area frequently to prevent a build-up of
flammable solids. Sawing data recommendations are shown in
Tables 18-20.
Eight of Ten 1
2 3
4
5 6 7
8 9 10
|
