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Nickel Aluminum Bronze Alloy C63200


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I'm doing some mill/turn work on a large part made of this alloy

I've been trying to find feeds and speeds info for milling but I'm not finding much

Does anyone know where I can find some

or have any advise on milling it.

My instincts are to use the same endmills I'd use for aluminum and dial things back about 40%,

but these are expensive parts

I'd prefer to base my tool paths and tool selection on data rather than SWAG

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My only contact with this has been some banjo bolts that went to some marine application. Something on some kind of pumps. We made a hundred then never took the job again or never got it again, idk. They were ran complete in a MT. Rough and finish was done with a .008 vbmt alu insert. If memory serves turning was 200sf, .03doc and .008ipr finish was same but .0035ipr. A magazine resident .5in alumigator was used for milling at 120sf and .0025ipt rough 0.0015ipt finish. Some holes were done with Sumocham drills and some with guhring but I can't remember the guhring drill, rt100 I think. Seems like it drilled better than it turned or milled. I only ran a few and passed it off. I can't say anything about tool life other than no one complained.

 

I'm sure you'll go much faster but I do recall the Sumocham drill wanted more but I never sped it up.

 

I pretty much made do with what was already in the magazine so I'm sure you will do better.

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This should be similar to, if not the same alloy, that we ran at Stadium. It's gummy and like a high chip load to break a chip. I'll see if I can find some of my old files, but I ran around 200-400SFM and typical Al chip loads. You might find some feedback data in our old emails as well.

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