What about using EDM fluid as a lubricant for Al cutting. Almost no smell Has additives to be gentler on the skin Higher flash point
Roland 2009/9/7 Erik Christiansen <dva...@internode.on.net> > On Sun, Sep 06, 2009 at 02:54:43PM -0400, Douglas Pollard wrote: > > > > > What is neat oil. I've never heard that term before? > > Just an expression, like "I take my whiskey neat", i.e. unadulterated. > There is, however, something called "Neatsfoot oil" > (http://en.wikipedia.org/wiki/Neatsfoot_oil), but I wasn't thinking of > that, just unemulsified 100% cutting oil. > > Since the pong of kero is more than I can endure, as well as being > unhealthy due to up to 18% aromatics (see wikipedia's kerosene entry), > I'll try the WD-40 when cutting any soft aluminium. There's also > methylated spirits. Since it evaporates, there's neither mess nor > rusting, I figure. > > The TCT sawblades being sold for use on aluminium are supposed to be > used with beeswax, which they sell in stick form. I suppose that my > speeds are pretty slow if I could't melt that. > > The diecast Al that I've just finished with cut fine dry, with only an > occasional build-up on the tool edge, that came off under gentle > fingernail pressure. The finish wasn't first grade, though. > > I'll have to put the tool to some age-hardening aluminium alloy castings > I made about 30 years ago, mixing about 3% Cu and 3% Zn with the Al, > IIRC. It hardened enough to be tough going for a small round-column > mill-drill, but cut like butter after 2 hours in the kitchen oven at top > temperature. (It's supposed to be possible to lift the tensile strength > from 10 to 25 tons/sq. in. [1], but even if it only makes the casting > easier to machine, I figure it's worth doing.) > > [1] Again, relying on memory from 30 years ago. > (Oh - Oh, there goes another evening, googling for more current > info.) > > Erik > > > ------------------------------------------------------------------------------ > Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day > trial. Simplify your report design, integration and deployment - and focus > on > what you do best, core application coding. Discover what's new with > Crystal Reports now. http://p.sf.net/sfu/bobj-july > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
