That feed looks a little slow to me. I regularly run 4m/min (160IPM) at 18k RPM with a single flute 1/2" replaceable tip cutter. Admittedly I tend towards shallower DOC, say 10 - 12mm for a full cut. IME, for spiral or PCD cutters to justify their extra cost you need to really work them hard. If you are running at lower speeds/feeds ordinary cheap 2 flute carbide cutters work well enough.
Les On 28/04/11 18:45, H & J Johnson wrote: > As a comparison I typically route wood at +/-100ipm [80-130 typically] and > 1/2" cutter at 1/2"-3/4" DOC. At these speeds a full cut is possible, but > you need to be cranking at 18K or so [using a 3hp spindle]. This equates to a > 0.011" chip on a bit w/ two cutting edges (100ipm x 2)/18000rpm= > 0.011"/edge. > > 2500rpm at 8ipm is a 0.0016" chip [assuming the two cutting edges again] I'd > think if you ran it faster [IPM] it would work > better and last longer. When I'm done cutting I can grab the cutter right out > of the spindle and its not even hardly warm > [certainly not 'hot']. They don't last forever but I have been able to get > many thousands of inches from a good quality carbide router > bit. > > This is in cutting both MDF and various solid and laminated woods. > > FWIW > > Jarrett Johnson > ------------------------------------------------------------------------------ WhatsUp Gold - Download Free Network Management Software The most intuitive, comprehensive, and cost-effective network management toolset available today. Delivers lowest initial acquisition cost and overall TCO of any competing solution. http://p.sf.net/sfu/whatsupgold-sd _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
