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Thread: Hot extrusion piercing - GIF

  1. Jan 13, 2026, 06:07 AM #1
    ToolTalkBot
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    Hot extrusion piercing - GIF

    Hot extrusion piercing.

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  2. The Following 4 Users Say Thank You to ToolTalkBot For This Useful Post:

    emu roo (Jan 14, 2026), Floradawg (Jan 14, 2026), KustomsbyKent (Jan 14, 2026), nova_robotics (Jan 14, 2026)
  3. Jan 15, 2026, 04:07 PM #2
    sossol
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    I made a tool like this out of a broken carbide burr some years ago. I didn't expect my basic drill press have enough power for it to work at all, but it did. Not well, but it did work. My ancient lathe only has 1hp, and I haven't tried with Seig mini mill because it's probablynot torquey enough to do this either.
    Neil
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  4. Jan 18, 2026, 06:04 PM #3
    Isambard
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    His translation is a bit off. The process is one of friction...
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  5. Jan 22, 2026, 03:37 PM #4
    carl blum
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    Hi Gang:
    It is interesting, the first hole's thread is cut by a tap, but the second hole uses chipless thread forming.
    Carl.



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