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Thread: CXA threading tool ?
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14th Mar 2018, 10:03 AM #1Senior Member
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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.
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14th Mar 2018, 03:56 PM #2Most Valued Member
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I think l have seen a similar threading tool in these forums, you just regrind the top face to sharpen.
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14th Mar 2018, 08:18 PM #3.
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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.
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14th Mar 2018, 11:57 PM #4Most Valued Member
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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!
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15th Mar 2018, 12:28 AM #5Senior Member
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Thank you for the impressive replies. I hope to return in kind one day
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15th Mar 2018, 09:07 PM #6Senior Member
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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)
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15th Mar 2018, 10:14 PM #7Golden Member
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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.
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15th Mar 2018, 11:20 PM #8Senior Member
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16th Mar 2018, 05:39 PM #9Most Valued Member
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Here's some blades for sale if you want to scoop some up. https://www.ebay.com/sch/kooltools63...1&_ipg=&_from=
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17th Mar 2018, 08:59 AM #10Golden Member
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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.
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17th Mar 2018, 09:13 AM #11Most Valued Member
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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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