Milling carbon filled UHMW

[SVanden]

I'm looking for any suggestions on milling carbon filled UHMW. The problem we are having is that the chips aren't clearing, and just "fuzzing" up. Using a 2 flute 0.218" dia ballnose cutting 0.046" dp with the tip, our max spindle speed is 5k and thats where we are running. I think the main problem with the process is that we are using a rotary table (max 15rpm rotation) to change part orientation during cutting, and the geometry dictates a feed of 3 ipm due to the ro-tab.

I am considering a vortex tube cold air gun, but don't think it will have sufficient velocity to blow the chips out before they re-weld theirselves back to the stock mat'l.

Svanden

 

[unclesyd]

Vortec cooling would certainly be something to try and it uses a relatively inexpensive device, the cost being the compressed air to power it. We have used up to three devices at a time on a milling machine.

One other method we used for machine cooling where we needed a large volume of cold air was a modified industrial spot cooler. I don’t see why one of the portable room air conditioners couldn’t be modified to cool the machining operation.

http://www.itw-air.com/index.php

http://www.portablecooling.com/portable-air-conditioners/air-boss.php

 

[SVanden]

We tried a cool tube about an hour ago, and it worked just fine.

Thanks