BQ340 wrote:

On 3/21/2011 4:37 PM, Ignoramus1419 wrote:
On 2011-03-21, Bob La wrote:
So purely as an intellectual exercise... assume that water is 100% not
available in any form. What would you use as a cutting
coolant/lubricant for milling aluminum.

As far as I know, you have two options:

1) Vegetable oil based mist cooling, which you may not like for many
reasons.

2) A blast of cold air.

Both have powerful negatives. Mist coolant settles on everything in the
shop and also spreads chips everywhere. Blast of cold air spreads
chips everywhere.

i

Cold air will scatter the chips out of the way, but won't do anything
for surface finish quality?

Chip evacuation will certainly help the finish by eliminating chip
welding, the biggest issue.