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  1. #1

    Drilling inconel

    I'm drilling .012 holes .150 deep in inconel.....The recommended feeds and speed are 3250 rpm and 1.87 imp.....no success at all.....does anyone have an idea???? Thanks in advance.

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  2. #2
    Join Date
    Aug 2015
    Posts
    108

    Re: Drilling inconel

    This is a old thread, but I'll bump it up.

    Inconel really doesn't like high SFM.

    I successfully drilled 200 .032" holes at about .2" depth. Walter cobalt drills.

    400 - 500 rpm, 0.1 IPM feedrate, 0.05 peck.

    You want about a 0.0001 to 0.0002" chip load. Drills are effectively a single cutting edge, not two.

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