Sandvik Coromant Heat resistant super alloys - Manual (Page 58)

56
9
8
7
6
5
4
3
2
1
0 12
10
8
6
4
2
0
Round insert geometries
• R300-0828E-PL 1030 or 1010
• R300-1032E-PL 1030 or 1010
+ periphery ground.
+ light cutting.
+ low vibration/cutting forces • R300-0828E-PH, 1030
• R300-1032E-PH, 1030
+ direct pressed.
+ need of stable fixture.
0.1 mm
15°
15°
0.2 mm
Time in cut, min
Feed, f
n
mm/r
0.1 0.15
Effect of feed
Facing to centre – Cobalt chromium
D
c
46 mm, v
c
70 m/min, a
p
0.5 mm, GC1030
Example:
At v
c
70 m/min, f
n
0.1 mm/r,
time per pass would be 29 sec.
At v
c
70 m/min, f
n
0.15 mm/r,
time per pass would be 20 sec.
D
m
46 mm
= R300-0828E-PL
= R300-0828M-PH
Time in cut, min
Speed, v
c
m/min
50 60 70 80
Effect of speed
Facing to centre – Cobalt chromium
D
c
46 mm, f
n
0.1 mm/r, a
p
0.5 mm, GC1030
Example:
At v
c
50 m/min, f
n
0.1 mm/r,
time per pass would be 41 sec.
At v
c
80 m/min, f
n
0.1 mm/r,
time per pass would be 25 sec.
D
m
46 mm
= R300-0828E-PL
= R300-0828M-PH