Bob, We use Valcool VNT 700 (by valenite) it's about $600 cdn for a 45 gallon drum. Typically we use a %6.0 concentration, which keeps the solution rancid free.
We machine all types of aluminum ;6061, 2024, 7075,etc many types of stainless 304, 316, 416, 15-5ph, 17-5ph,etc. berylium copper, yellow brass, red brass, mild steel, and all types of alloy steel. We have an older machine which does not have a closed lubrication system. (oil gets into the coolant tanks from the ways). With this machine we use the pure concentrate as a lube oil !!! It seems to work well. The best type of coolant we've found for roughing most type of stainless & alloys is air. We hooked up a system of air lines with about 150 psi of air pressure !! We have made vast improvements by means of a lower insert consumtion. It took a while to get the right combination of insert grades & such, but well worth it. Some day I would like to assign an M code to an electric valve to turn the air on & off automatically. As it stands, we use a manual ball valve !! If you would like to know more about this, feel free to e-mail me. Kris > -----Original Message----- > From: Robert T. Callahan [SMTP:[EMAIL PROTECTED]] > Sent: Wednesday, January 24, 2001 12:16 AM > To: smartcam group > Subject: [mfg-smartcam] off-subject question > > Sorry for the non-SmartCAM question, but I need help selecting an > all-around flood coolant. > > I'm looking for something that works well for a variety of metals and > machining applications, doesn't turn rancid or start to really smell > after only a month or two, has good lubricity, doesn't need a lot of > special additives to keep it healthy, and doesn't cost a fortune. > > Any suggestions would be appreciated. > > ====================================================================== > To find out more about this mailing list including how to unsubscribe, > send the message "info mfg-smartcam" to [EMAIL PROTECTED] > ====================================================================== ====================================================================== To find out more about this mailing list including how to unsubscribe, send the message "info mfg-smartcam" to [EMAIL PROTECTED] ======================================================================
