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  1. #1
    Join Date
    Jul 2020

    NEED ADVICE - grooving OD

    Hello all. New to cnc machining, need some expert advice.
    I want to turn a groove in a 1.5” mild steel shaft, 0.5” deep, 0.5” wide. I’m using a Sandvik grooving/parting insert. What is a good starting point for speeds and feeds when I’m doing this? Recommended spindle rpm? Any help is appreciated.

  2. #2
    Community Moderator Jim Dawson's Avatar
    Join Date
    Dec 2013

    Re: NEED ADVICE - grooving OD

    I guess I would start at about 200 SFM for the spindle, maybe 0.005 IPR feed. You will most likely want to use constant surface speed. Peck feed.
    Jim Dawson
    Sandy, Oregon, USA

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