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IndustryArena Forum > MetalWorking Machines > CNC Swiss Screw Machines > single pointing 7/8-14 I.D. in 718
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  1. #1
    Join Date
    Sep 2011
    Posts
    17

    single pointing 7/8-14 I.D. in 718

    I have a job that includes single point threadingthe I.D. in 718 inconel heat treated to about 35-40 Rockwell-suggestions for starting sfm??

  2. #2
    Join Date
    May 2004
    Posts
    4519
    20-40?

  3. #3
    Join Date
    Sep 2011
    Posts
    17

    718 single pt. threads

    Thanks, I was thinking around 30. Good to know on the right track

  4. #4
    Join Date
    Oct 2011
    Posts
    0
    It pains me to think of how long that's going to take, hah.

  5. #5
    Join Date
    May 2004
    Posts
    4519
    For 1" thread length at 30 SFM is 131 RPM and about 217 seconds for 10 passes.

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