Question for a machinist

[djc]

I have to machine some Ti CP Grade 2 plate. Using 1/2" 2 flute carbide endmills. What kind of spindle speed and feed rate do you recomend?

Thanks!

[arrowsmack324]

I'd say look up the manufacturers specs for that end mill and start right in the middle and adjust from there. I'm sure a more knowledgeable feller will be by shortly.

[Goldeneagle]

I'm not a mill guy, but titanium needs to run fairly slow. I would think about 800rpm and about 5ipm. I do know if you run too much rpm, you can catch it on fire. Maybe a mill guy will answer. I'm a lathe guy.

[chrisgunguy]

assuming its around 200bhn I would start with 191sfm and a .002chip load. Sharp tool, lots of coolant.

S1459 F5.8ipm