Hello Gene Using copper tools to cut steel ( all other variable untouched ) Positive tool is lower wear & slower cut & rougher finish Negative tool is higher wear & faster cut & finer finish hth tomp tjtr33
http://connection.ebscohost.com/c/articles/66135144/effect-tool-polarity-machining-characteristics-electric-discharge-machining-silver-steel-statistical-modelling-process http://edmtechman.com/about.cfm?pg=2&chap=8 On 07/21/16 06:27, Gene Heskett wrote: > On Wednesday 20 July 2016 14:14:21 andy pugh wrote: > >> On 20 July 2016 at 18:29, Gene Heskett <ghesk...@shentel.net> wrote: >>> I don't have a mill spindle with the torque enough to turn one of >>> those at a good enough feed rate to keep it cutting clean, and slow >>> enough it won't burn dull in seconds. >> You could use the lathe, I suspect. > But for edm, I can't turn it so the electrode disk is well covered with > k2. EDM leaves no burrs to trim off. Sitting in a dishwasher soap > packet container is just right for a nearly 3" disk. > > So one final Q for the list, whats the best polarity? I don't recall > reading that on the wikipedia pages, but I'll go look again. No, it > doesn't make any polarity assumptions, so I guess I'll go get started. > > All I am needing now is to make a wire wrapper for the spindle shank, > ditto the work piece. Strip 2+ inches, spread it in two and wrap the > disks arbor shank with one, and the part with the other lead. > > Thanks and I'll be back later. > > Cheers, Gene Heskett ------------------------------------------------------------------------------ What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic patterns at an interface-level. Reveals which users, apps, and protocols are consuming the most bandwidth. Provides multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make informed decisions using capacity planning reports.http://sdm.link/zohodev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
