This CNC milling method is considered an excellent solution for difficult machining situations including slotting of hardened and exotic materials (Inconel or Titanium), and other materials where the slot is wider than the tool diameter. It also has application for milling deep pockets and grooves, and in confined cavities.
Another advantages include improved tool life, reduced cycle time, increased material removal rates and the ability to use multi-fluted tools without the chips becoming welded onto the flutes.
In summary “The keys to successful trochoidal milling are to maintain high speeds, keep the cutter in continuous movement and maintain low radial engagement. This method creates a chip thinning effect and reduces the number of axial passes because the tool cuts using the entire cutting flute length.”