Gallery, Projects and General > How to's

Using Carbide Milling Cutters

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DaveH:
Sparky,
   I like the full face shield. :D Purring is good. :thumbup:

John, Thanks :beer:

DaveH

DaveH:
Just a little more on milling in the Home Workshop.

It is important to Look, Listen and Feel your machine,  John has an industrial milling machine (don’t know about Sparky’s machine) nevertheless John said in his post “listening and looking at how it was cutting” This is one of the most important parts of milling, if the machine seems happy then all is good. If the machine feels jerky, noisy, and is vibrating, then reduce the depth of cut, still vibrating reduce the spindle speed. :)

Always start with a slow spindle speed and a small depth of cut with a low feed rate.

Just remember slow spindle speed “equals”  small depth of cut. You cannot have a big depth of cut with a slow spindle speed.
So to increase the depth of cut the spindle speed nearly always has to increase, this can cause vibrations, so we are in a bit of a catch 22 situation. This is where the rigid Industrial machines score.

All milling machine are different some perform well at 3000 rmp, 6mm cutter ½ mm depth of cut, some wont. Some are happy at 1000rmp,12mm cutter ½ mm depth of cut.

So fast / slow are relative to your machine :thumbup:

Look, Listen and Feel.  Take care of your one good eye. :D

  :beer:
DaveH

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