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Thread: Dry milling of aluminum

  1. #21
    Member dharmic's Avatar
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    Default Re: Dry milling of aluminum

    Pain? Nah. 6061 is nice to mill! It carries the heat off the work, it's pretty soft allowing for decent feeds and speeds but it's still reasonably stiff and holds a decent finish. You just need to respect that it will try and gum to the cutter and deal with that, and know that it will bounce a bit so super fine 0.001" spring passes do bugger all but scuff it up, that last pass needs to be a bit meatier for it to work properly.

    I love working with 6061.



  2. #22
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    Default Re: Dry milling of aluminum

    I'm a hobby cnc'r and I get my scrap from the local boat builders they use 5083 ally
    I say the 5083 is similar to 6061 only because of the specs that I found online
    But the major difference seems to be in the Magnesium content
    Because I get my scrap from the same place I can only assume I have never milled 6061

    5083 Alluminium Magnesium (Mg)4.0 to 4.9 % close to a 300% increase
    6061 Alluminium Magnesium (Mg)0.8 to 1.2 %

    Can you post your tool and feeds and speed's that your using
    for a full width slot cut plus DOC.


    cheer's



  3. #23
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    Default Re: Dry milling of aluminum

    of the commonly stocked aluminiums, 7075 machines best i find, then 2024, then 6061. i have some 5080 in cast plate form. i have not cut it yet, but im told its "adequate" to amchine. better than mic6, but not as good as the 3 main bar stock alloys.



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Dry milling of aluminum

Dry milling of aluminum