Begin Greg -- The Tool and Die crew I worked with would use a Ranque-Hilsch vortex tube, or mister on the machines in the die dept because none were rigged for flood. One of the favorites was to mix up a 40% Isopropal alcohol with distilled or DI water and run it in the mister. The Alcohol really boosted the evaporative cooling. When the job needed extra chill they would run 95% Isopropal. Only time it would ever catch fire was when OD grinding 1mm dia. ejector pins. It would light for maybe 2-3 seconds, but could never sustain its self.
I would use an inline pressure regulator and keep the pressure down around 25psi to help keep your compressor from having a heart attack. On gummy AL I have made a 1/4" mote around the work area on the panel and used a small squeeze bottle to put just enough Kerosene on the part surface to see that it is .02" deep and as it leaks away through the cutouts I add more as needed, (running 4K-24K RPM) I also highly recommend Kerosene for use with "D" profile engraving cutters. End Greg -- _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
