You don't say how many holes to drill/hr, how many holes per part, orientation of adjacent holes. (parallel, orthogonal) It may be practical to have a setup with multiple heads that EDM drills all the holes at once.
On 10 February 2017 at 23:59, Jim Craig <jimcraig5...@windstream.net> wrote: > I am working on a project at work where we are designing a new CNC > machine for a particular application. Up to this point I have been > planning on using a standard machine spindle. > > The more I think about the actual process and needs of the machine I am > thinking that a small hole EDM drilling head would be better for this > application. > > The application required drilling small 0.050" diameter holes through > .135" thick stainless steel. The back side of these holes are in an > annular space that cannot be easily reached for deburring. > > The reason I am contemplating the small hole EDM process is three fold. > First it is difficult to drill these tiny holes in stainless and the > drill bits frequently break. Secondly the back side of the hole needs to > be burr free but is difficult to get to with conventional tools. Third > the machine could be lighter and simpler if I use EDM vs a standard > milling head. > > So my questions are as follows. What type of power supply would I need > to use for doing small hole EDM drilling? Can I use a tig welder as the > power supply and control pulsing with LinuxCNC driving an external IGBT? > Could I use the Mesa THC to control gap of the electrode to the workpiece? > > It appears that spindles don't need to rotate very fast. What type of > rpm do the spindles typically run at? > > That is all for now. I am sure I will have more to come. > > Thanks, > > Jim > > > ------------------------------------------------------------ > ------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, SlashDot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
