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The sounds of machining? The sounds of good cuts versus bad?

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Is there a place where I can “hear” what chattering, steep Depths of Cut and other things sound like? To identify issues! Thanks.

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A quiet cut is a happy cut in general.  Chatter, being a resonance phenomenon makes a very characteristic sound, though it can be at many pitches depending on the chatter frequency.  Many machinists claim they can hear the cut and that’s all they need to get good feeds and speeds.

While you can offer hear a very bad cut, it is a misnomer that you can hear a great cut.  If you could, you’d be able to buy training CD’s and the like.  Boeing and the like would have every machinist in the shop listening to them and they’d be testing machinists that walked in for hire with audio tests.  

The only way to ensure good feeds and speeds is to do the proper calculations using a tool like the G-Wizard Calculator.  The alternative, which is a lot more trouble and a lot less optimal is trial and error with rules of thumb.

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