High feed milling

High Feed Machining

High feed machining is the process whereby a machinist ups his feed to the region of 2000+ mm per minute and reduces the cut size to around 1mm. This process requires specialized high feed cutters and inserts to achieve.

There are a number of advantages to high feed machining like:
  • Spindle load is greatly reduced
  • Machine time is often reduced as your feed is much higher than with regular machining
  • Shavings are smaller and easier to handle
  • Less risk of cutter burning
  • Insert life is much greater
  • Insert and job don't get as hot with high feed milling
The disadvantages of high feed machining are:
  • Much more prone to vibration
  • Generally very loud
  • A separate finish cut is needed as the finish on high feed milling is not good
  • Sub-programs are necessary to prevent the programs from being too long
  • Cut size is much smaller
  • Does not work on most older machines

Even with these disadvantages, high speed machining has become very popular, and is being used more and more in the cnc industry. The advantages outweigh the disadvantages, and as tool developers produce new inserts and cutters, the disadvantages will be eliminated.

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