Anyone have some Speed & feed advice for milling Nickel 200? (Pure Nickel) I am milling pockets with a Ø.1875 .03R bull nose end mill, and getting a lot of chatter type tool marks. Have tried Cobalt & Micrograin carbide tools. Finish DOC is around .002", side finish step is .020" Cobalt RPM is 1000rpm, carbide is around 2500rpm.
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