Method thread chasing

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  1. #1
    Member FabricioP10's Avatar
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    Default Method thread chasing

    What’s the best method for chasing a taper thread in a box connection??

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    Community Moderator Jim Dawson's Avatar
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    Default Re: Method thread chasing

    If you're talking about an electrical box connection, normally the are a pipe tap size. In not a pipe tap, then just find the correct tap for the hole.

    Jim Dawson
    Sandy, Oregon, USA


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    Member FabricioP10's Avatar
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    Quote Originally Posted by Jim Dawson View Post
    If you're talking about an electrical box connection, normally the are a pipe tap size. In not a pipe tap, then just find the correct tap for the hole.
    In a cnc doosan machine...

    Attached Thumbnails Attached Thumbnails Method thread chasing-26805518-2f26-4c23-a172-08f56cf70a97-jpg  


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    Community Moderator Jim Dawson's Avatar
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    Default Re: Method thread chasing

    In that case I have no idea. I could do it on a manual lathe with a taper attachment, but I wouldn't even attempt it on my CNC lathe.

    Jim Dawson
    Sandy, Oregon, USA


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    Community Moderator Jim Dawson's Avatar
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    Default Re: Method thread chasing

    After thinking about this a bit, I do maybe have an idea.

    Rotate the tool so the cutter can not touch the part
    Load and run the program
    Set the feed override to very slow
    When the tool would be engaging the thread, press feed hold
    Now move the tool as needed to engage the thread and tighten.
    Release the feed hold.

    Not sure if this would work, but might be worth a try.

    Jim Dawson
    Sandy, Oregon, USA


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    Member FabricioP10's Avatar
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    Quote Originally Posted by Jim Dawson View Post
    After thinking about this a bit, I do maybe have an idea.

    Rotate the tool so the cutter can not touch the part
    Load and run the program
    Set the feed override to very slow
    When the tool would be engaging the thread, press feed hold
    Now move the tool as needed to engage the thread and tighten.
    Release the feed hold.

    Not sure if this would work, but might be worth a try.

    I chased straight threads before but haven’t done it in a while..but I’m looking for a simple good method that works good on taper threads



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    Default Re: Method thread chasing

    That is common connection DP, it is 4-1/2" IF Box. Maybe the fastest way is look for data sheet on API book ?



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    Member FabricioP10's Avatar
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    Quote Originally Posted by asuratman View Post
    That is common connection DP, it is 4-1/2" IF Box. Maybe the fastest way is look for data sheet on API book ?
    I’m just looking on an easier method to catch the lead on a few boxes..Why the API book?



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    Default Re: Method thread chasing

    Why the API book?
    That is API conn right ? You can check on API 7G.



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    Default Re: Method thread chasing

    What’s the best method for chasing a taper thread in a box connection??
    hy, please excuse me, this will sound weird : i believe that i can help you, but i don't understand what means to "chase a thread / in a box connection ?!?" ... let's google it ...no, i did not get it


    you wish to re-chuck a taper thread, and run a spring pass on it ? kindly

    we are merely at the start of " Internet of Things / Industrial Revolution 4.0 " era : a mix of AI, plastics, human estrangement, powerful non-state actors ...


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