Re: machining copper

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Ed Phillips <evp-at-pacbell-dot-net> 

Tesla list wrote:
 >
 > Original poster: Jim Lux <jimlux-at-earthlink-dot-net>
 >
 > I just received an interesting and useful piece of machining lore.
 >
 > When machining copper (which is difficult to machine):
 >
 > sharp tools
 > Fast speeds
 > condensed milk as a lubricant <<< this was the new thing...
 >
 > Think about it... a colloidal dispersion of a high temperature oil (butter
 > fat) in a water base.
 >
 > Stinks, goes sour, etc., but apparently is the "miracle lube" for copper
 > cutting.

	Thanks for the tip and will remember it next time I try.  Sounds kinda
expensive though. Wonder if it works any better than soluable oil?

Ed