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Thread: Friction stir welding - GIF, video, and images

  1. #11
    Jon
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    Are they intentionally friction drilling the hole to build up the hole walls, so that they can then insert a threaded insert into the hole, such that the insert will have more support on its perimeter?

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  2. #12
    Supporting Member Toolmaker51's Avatar
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    Not in the GIF version, but could be done. Isn't any 'flash' remaining around the insert, a PITA to remove, doubly pointless application of thermal drilling. Rim of insert protrudes above parent metal. Thermal drilling [ferrous] in a wall thickness ~ .5 diameter creates a topside depression somewhat like a countersink; in most cases, a beneficial feature.
    IMHO insert is in a standard drill hole, versus tapping a thermal drilled hole. Can't justify why the GIF shows two thermal-drilled holes. Mayhaps I'll re-visit GIF and re-evaluate.
    My 'edit' button hasn't worn out yet!
    Insert GIF, thermal drill has a head to roll the upper perimeter into a rim. But the flash below isn't visible, just the insert.
    And still, 'edit' button hasn't worn out.

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    Last edited by Toolmaker51; Nov 11, 2018 at 01:44 PM.
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    Toolmaker51
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  3. #13
    Jon
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    Aluminum stir welding.

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  4. #14
    Supporting Member Ralphxyz's Avatar
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    Just how is that motor working? Is the motor and wiring on the other side?

    Ralph



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