Inserts Withstand Heavy, High-Feed Cuts
Swapping standard button inserts for a new grade from Ingersoll helped this manufacturer of downhole oil-drilling equipment double throughput on a troublesome arbor milling job in hardened steel.
|
Before |
After |
Effective Cutter Diameter (in.) |
16 |
16 |
Effective Inserts (#) |
18 |
18 |
Edges per Insert |
8 |
8 |
Surface Speed (sfpm) |
830 |
500 |
(rpm) |
197 |
119 |
Feed (ipm) |
15.3 |
19.3 |
(per insert, inches) |
0.004 |
0.009 |
(per revolution, inches) |
0.077 |
0.162 |
Total Cut Time (hr) |
6.8 |
3.08 |
Tool Life Index |
1.00 |
1.88 |
Length of Cut (In.) |
5164 |
3579 |
Direction of Cut |
Conventional |
Conv’l & Climb |
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