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Thread: Boring 2205Duplex SS

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  1. 03-24-2012, 02:33 PM #1
    RSLaser
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    Boring 2205Duplex SS

    Anyone out there have any success boring 2205 duplex ss? I have a 2.5" boring bar hung out 5.5" boring inside "ribs" on a 3.5" id. Using a .010r insert, I am getting a great finish, but also breaking alot of inserts. Any help????
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  2. 03-25-2012, 01:39 AM #2
    fordav11
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    0.010" radius insert?
    that's pretty small for stainless... actually that's small for any material.
    we normally use 0.8mm radius insert for boring bars (0.0314").
    I assume 'ribs' means intermittent cutting.... use a stronger insert shape like a CNMG or WNMG insert and feedrate maybe 0.008" - 0.012" and surface speed maybe 180 - 240 fpm
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  3. 03-26-2012, 01:13 PM #3
    RSLaser
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    I forgot to mention, this is my finish pass. I am boring as much as I can with a wnmg.
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  4. 03-26-2012, 01:19 PM #4
    txcncman
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    Insert grade has a lot to do with it also.
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