584,841 active members*
4,312 visitors online*
Register for free
Login
Results 1 to 2 of 2
  1. #1
    Join Date
    Jul 2006
    Posts
    2

    Surface finish

    Hi Guys,
    Does anyone out there have a calculation to calculate the stepover and cusp height to obtain a known surface finish in micro-meters.

    Thanks for any help

  2. #2
    Join Date
    Mar 2006
    Posts
    2712
    d.a.v.e
    This is taken from an article in Tooling & Production Magazine.
    Ra (Microinches) = [(feedrate)sq. / (Insert nose radius X 8) / 3
    Ra X 1.11 = RMS
    Ra X 0.025 = Micrometers
    I hope this helps. Good Luck.
    DZASTR

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •