On Feb 13, 2012, at 8:05 AM, John Thornton wrote: > Tom, > > Wow! what a nice write up. > > I use a mix of sodium nitrite and physan 20 in my water. I noticed your > water is green, what are you using?
Lube Corp., Green Cut (http://www.greencut.com/). We used it because we had it sitting around the shop. Peter tried using it in his converted Fadal mill but didn't like it for some reason I don't recall. It seems to be fine in the plasma table for the few weeks we've had it. > How does cutting submerged work? > I've been wanting to modify my water table to do this for some time... The torch we have is not designed to cut fully submerged (Hypertherm Powermax54) If the part is just under the water, say 0.25" or less, the air blowing through the torch head will just move the water out of the way and it is cutting just like it is above water (minus the top sparks of course). If you get the part any deeper though you get a lot of dross on the bottom, normally an indication of cutting to fast. It just can't cut it (pun intended) if it is really submerged. We try to keep the part just at the surface. Supposedly there are torches designed to cut fully submerged, so I have read, but I don't know anything about them... Tom ------------------------------------------------------------------------------ Try before you buy = See our experts in action! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-dev2 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
