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  1. #1
    Join Date
    Jun 2007
    Location
    Victoria, Australia
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    114

    Question CXA threading tool ?

    I was given what looks like a threading tool integrated into an aloris tool holder. Is anyone familiar with this type of tool?
    Looks like its purpose for for heavy duty threading.
    Attached Images Attached Images

  2. #2
    Join Date
    Apr 2012
    Location
    Healesville
    Posts
    2,129

    Default

    I think l have seen a similar threading tool in these forums, you just regrind the top face to sharpen.

  3. #3
    Join Date
    Nov 2008
    Location
    Perth WA
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    71
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    6,458

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    Hi Topari,

    It looks similar to an Ifanger or Komet but I'm assuming it relies on height adjustment via the tool holder's adjuster. Here's an Ifanger threading tool - //metalworkforums.com/f65/t2010...66#post1926966

    Bob.

  4. #4
    Join Date
    Oct 2007
    Location
    Sydney
    Posts
    3,112

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    I believe it's from a now defunct US toolmaker DTM. The advantage of this type of holder is the blade will last a VERY long time before needing to be replaced. It also can be tilted to the left and right to provide the appropriate relief if you're cutting fast LH threads for example. The genuine Aloris ones are somewhat similar, although their blades are a bit more impressive (read expensive) looking.

    Check the geometry, pictures can be a bit misleading, but I think the tool can be raised up so the bottom edge is on centre, and that allows the lathe to be run in reverse and cut the thread the opposite way without actually having to flip the tool as you would normally need to do. Rather cunning really. Nice find!

  5. #5
    Join Date
    Jun 2007
    Location
    Victoria, Australia
    Posts
    114

    Thumbs up

    Thank you for the impressive replies. I hope to return in kind one day

  6. #6
    Join Date
    Nov 2010
    Location
    Frankston south
    Posts
    102

    Default

    I have the same thing in AXA size from Aloris and think its the ducks guts, as stated earlier simply dress the top and set to height. (some have lead angle adjustment too)

  7. #7
    Join Date
    Sep 2008
    Location
    Riddells Creek, Vic.
    Posts
    831

    Default

    Hi Topari,

    Could you take some additional photos of the actual tool mounting block showing how it is attached to the toolholder and how is adjusted (If it is actually adjustable) for right and left hand helix, I would like to make something similar.

  8. #8
    Join Date
    Jun 2007
    Location
    Victoria, Australia
    Posts
    114

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    Quote Originally Posted by Techo1 View Post
    Hi Topari,

    Could you take some additional photos of the actual tool mounting block showing how it is attached to the toolholder and how is adjusted (If it is actually adjustable) for right and left hand helix, I would like to make something similar.
    Will do.

  9. #9
    Join Date
    Oct 2007
    Location
    Sydney
    Posts
    3,112

    Default

    Quote Originally Posted by Techo1 View Post
    Hi Topari,

    Could you take some additional photos of the actual tool mounting block showing how it is attached to the toolholder and how is adjusted (If it is actually adjustable) for right and left hand helix, I would like to make something similar.
    Here's some blades for sale if you want to scoop some up. https://www.ebay.com/sch/kooltools63...1&_ipg=&_from=

  10. #10
    Join Date
    Sep 2008
    Location
    Riddells Creek, Vic.
    Posts
    831

    Default

    Quote Originally Posted by Pete F View Post
    Here's some blades for sale if you want to scoop some up. https://www.ebay.com/sch/kooltools63...1&_ipg=&_from=
    That's probably a better and easier option than making them myself. I was going to get some flat HSS bar from Bohler and machine it then harden and grind it but after reading the hardening procedure I have realized that it is not as straight forward as hardening some other tool steels. I did make a 14mm HSS tap during my apprenticeship that we hardened and thread ground "in house" at RMIT where they had a well equipped Heat Treatment Department.

  11. #11
    Join Date
    Oct 2007
    Location
    Sydney
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    3,112

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    Agree, the blades are available in various thicknesses and the appropriate one will depend on how beefy the thread is you're making.

    What I like about that design is being able to reverse the spindle, adjust the tool height and thread back from a shoulder (not that my lathe can do that). However I think many of these advantages are available in the Aloris design too, and if I was going to scratch build one I think I would probably look at that one rather than the BTM. The Aloris blades are more complex, possibly more expensive, but more common and available in various thread types straight out of the box Threading Holders, Blades & Inserts (Pg. 20-21)

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