04-17-2008, 02:41 PM
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| | | Join Date: Apr 2006 Location: CH
Posts: 82
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It's normal. Stellite is one of the most difficult to cut material. Cutting tool don't like cobalt alloy.
Use very low speed (25m/min), low feedrate (feed per tooth) 0.005xD, low cutting depth (<0.25xD) and strong geometry with a coating (Roughing geometry).
Act like it was a hardened steel (except with the cutting speed).
GOOD Luck. I've already drilled this material. The chip was short, but after 20 holes, the wear on cutting tool was strong. |
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