Tooth Count

​Following on to our discussion of tooth count. On the left we show core diameter examples of four pitches of endmills. There are differences if the helix angles were different and geometries are different from different manufacturers, but you get the idea. Fewer teeth, the smaller the core and the more flexible the tool. We used very short endmills in very short toolholders and used RCSA modeling to calculate stability lobes.

This NOT a definitive study, just an experiment because we were curious. The 4 and 5 flute were not aluminum cutting geometries, we were just testing their stiffness. They predicted significantly better metal removal rates.

Since we are doing more trochoidal tool paths in aluminum, why not more teeth? With less radial engagement, chip packing would not be as big an issue. Again, just curious.