HPC trochoidal milling falls under shoulder milling. Instead of straight toolpaths, the tool mills trochoids, or short loops, into the surfaces being machined. In such operations, it is necessary to ensure that the stepover (ae) is not too large.

Especially under unstable conditions or with large overhangs, this type of machining offers several advantages. Due to the shorter cutting time, the tool vibrates less than it would if you were using traditional milling strategies. In addition, it is also possible to increase the cutting speed (Vc) by up to 500 per cent thanks to the shorter heating and longer cooling phases. For a purely technical perspective, solid carbide and indexable milling cutters are able to perform this machining operation. In spite of this, HPC solid carbide cutters with a vibration-inhibiting geometry have become the standard. Vibrations are reduced to a minimum by means of an irregular distribution of cutting edges and varying spiral angles. This ensures a longer tool life while allowing for larger cutting parameters.

ZCC Cutting Tools is sure to have the right HPC end mills for your specific application. Do you need help with your HPC trochoidal milling applications? Then contact us. We’re there to help.