Plunge milling might be an option? https://www.sandvik.coromant.com/en-us/knowledge/milling/milling-holes-cavities-pockets/plunge-milling Plunge milling sandvik.coromant.com
This has the same chip issues as other pocket milling strategies but the federates can be much higher, particularly with small tool diameters and deep holes. A horizontal mill uses gravity to help with the chip issue. > On Feb 28, 2023, at 2:53 PM, Todd Zuercher <to...@pgrahamdunn.com> wrote: > > I need to mill about a 3.75" hole through a piece of aluminum about 1.75" > thick. What is the best strategy to accomplish this on a cnc mill. Is it > best to us a pocketing strategy and mill out the entire hole from the center > out, or would it be better to use some kind of cutting strategy and mill some > size slug out of the middle? I can see the first option being simpler, but > the 2nd option saves a potentially useful piece of material, but with the > added complication of how to hold and prevent the chunk of scrap from > wreaking havoc when cut free. > > Todd Zuercher > P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php> > 630 Henry Street > Dalton, Ohio 44618 > Phone: (330)828-2105ext. 2031 > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
