We have found a 3 Flute Variable Pitch High Performance End Mill with either a DLC or Hard Carbon Coating is giving the best performance when running an Optimized Tool Path like Volumill, DynamicMill or iMachining. The Variable Pitch Breaks up Harmonics, the 3 Flutes evacuate the chips while being up to keep the feed rate up and the DLC or Hard Carbon Coating will give the best possible tool life.
The Speeds/Feeds to run these tools at Depends on the Diameter and the Length of Cut of the Tool, so we grouped every tool into 3 different Tiers Depending on the Length to Diameter Ratio (Using a Stub or Regular Length End Mill will give you the best Metal Removal Rates and is the first choice):
- Stub: Around 1.5XD-2XD
- Regular: Around 3XD-5XD
- Long: Around 6XD-8XD
Select a Diameter x Length of Cut Below to see Parameters:
