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COVID-19 : La réponse de Kennametal

Tech Tip: Reducing Chatter in End Milling

Chatter in the form of vibration and noise is a frequent challenge when end milling, causing scalloping and uneven finishes. 

To reduce chatter, try the following:

  • Ensure that the starting places for speeds and feeds are correct for the workpiece material and the cut.
  • Increase the feed, or chipload per tooth/tool.
  • Make the workpiece as secure and rigid as possible.
  • Reduce excess overhang between the workpiece and spindle.
  • Select an end mill with more flutes.
  • Check the tool run-out.
  • Review the tool geometry to ensure the cutting face, relief, fluting and helix angle are appropriate for the workpiece material.
  • If conventional milling, try climb milling.