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Thread: How do you determine the optimum feed rate, depth of cut,,,,

  1. #1
    Associate Engineer
    Join Date
    Oct 2019
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    1

    How do you determine the optimum feed rate, depth of cut,,,,

    How do you determine the optimum feed rate, depth of cut, rotation speed and tilt distance when machining different hardwoods on a CNC machine? I summed up a method.
    In my experience feeds and speeds are not very critical in wood. I just make a guess, usually starting from 200 mm a minute and adjust the feed rate override. As long as the spindle dosent bog down (reduced rpm, lower pitch) the cutter isn't burning up (smoke, black resedue) then its probably OK.
    The thing to watch out for it tear out when cutting across the grain. It's worth adjusting the program to cut from outside the workpiece towards the middle to prevent pieces flying off where you don't want them to.
    Because I am a newcomer engineer, so many donít understand about it.



  2. #2
    Principle Engineer Cragyon's Avatar
    Join Date
    Feb 2013
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    Newark, NJ
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