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BobFrindt1-Visitor
1-Visitor
May 4, 2012
Question

EXTERNAL THD

  • May 4, 2012
  • 6 replies
  • 1887 views
Bob Frindt
Sr. Designer
Parker Hannifin Corporation
Parker Aerospace
Gas Turbine Fuel Systems Division
8940 Tyler Boulevard
Mentor, OH 44060 USA
direct (440) 266-2359

    6 replies

    P
    pfadams1-Visitor
    1-Visitor
    May 4, 2012
    CAN SOMEONE EXPLAIN HOW PROE DOES AN EXTERNAL THD ON A PART. FOR INTERNAL YOU DO A SIMPLEHOLE AND CHANGE IT TO A THD.
    HOW NICE. HOW ABOUT A NICE SIMPLE EXTERNAL THD.
    P
    pfadams1-Visitor
    1-Visitor
    May 4, 2012
    THANX ALL GOT IT

    L
    lsrutkowski1-Visitor
    1-Visitor
    May 7, 2012

    Paul,



    Glad you got it fixed, but, care to share with the rest of the group? Email replies only go to the individuals, but posts to the list go to everyone.



    In Reply to Paul Adams:


    THANX ALL GOT IT

    B
    BobFrindt1-VisitorAuthor
    1-Visitor
    May 7, 2012
    Lawrence,
    Looks like the image somehow got stripped from your email.
    Here it is.


    Bob Frindt
    Sr. Designer
    Parker Hannifin Corporation
    Parker Aerospace
    Gas Turbine Fuel Systems Division
    8940 Tyler Boulevard
    Mentor, OH 44060 USA
    direct (440) 266-2359
    P
    pfadams1-Visitor
    1-Visitor
    May 8, 2012
    Sorry for not posting.
    The results were 2

    1. Cosmetic , thread - if for looks only

    2. Insert, helical sweep- if being used to machine or grow



    Thanx all for the help
    P
    ptc-19327451-Visitor
    1-Visitor
    May 8, 2012
    I would think that for most, if not all instances, CAD, FEA, CAM using a
    helical sweep profile would be a detriment. I know that modeling
    springs, bolts, etc... using helical features really bogs the regen
    times down.



    Stick with cosmetic.



    Now, PTC needs to include some intelligence to the 'hole' type to help
    the CAD/CAM system deal with interferences, and recognizing tapping
    sequences as you should model the part in a 'stock safe' condition. OD
    threads at the OD and holes at the tap drill dia.





    Christopher F. Gosnell



    FPD Company

    124 Hidden Valley Road

    McMurray, PA 15317
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