Back to Datasheets
COBALT STEEL END MILLS
The deep cryogenic treatment of 8% cobalt end mills has made dramatic improvements in two important ways:
1. The number of milling cuts per re-sharpening was increased from 3 cuts before deep cryogenic processing to 78 cuts after processing, an increase of 26 TIMES the wear life.
2. Re-sharpening the end mills after deep cryogenic treatment required only 1/3 the amount of stock removal to restore the tool geometry.
An Industrial Contractor of Phoenix does sub-contract production for the aerospace industry and is constantly challenged by machining exotic Hi-Nickel alloys. This application required milling of Waspaloy AMS-5706. Each pass produced a flat 1 1/8’ by 1 1/4’. The end mills are M-42 Standard 8% Cobalt. A cost analysis shows the cost per part before and after deep cryogenic treatment.
|
COSTS |
BEFORE TREATMENT |
AFTER TREATMENT |
|
Tool Replacement Cost |
$14.72 |
$4.91 |
|
Tool Re-sharpening Cost |
$28.00 |
$4.00 |
|
Lost Time Cost |
$12.00 |
$0.80 |
|
Cryogenic Treatment Cost |
- |
$2.45 |
|
TOTAL TOOLING COST |
$54.72 |
$12.16 |
|
TOTAL SAVINGS PER PART |
- |
$42.56 |