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Thread: Tig vs. Fillet

  1. #1
    get down!
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    Tig vs. Fillet

    what's the deal?

    why do some prefer one over the other...could someone post up some pics of fillet welds vs. tig welds...from custom builders please?

    what does IF use? Curtlo, Matt Chester, Vulture, Soul Craft, Sycip, etc?

    thanks...hmmm, custom 29er could be in the works....YESSA!
    Rudy Projects look ridiculous

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  2. #2
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    Tig!!!!!!!!!!!!!!!!!!!

    IF and MC are both TIG. All the Vultures I've seen are also TIG. Don't know about those other folks. Titanium can only be tig'd. Fillets are brazed, not welded. if you're going for function over fashion than TIG is the way to go, but fillet brazing is more of a road bike thing so I don't know if it is even fashionable in the mtb world.

    John Slawta at landshark does a lot of fillet brazing: http://www.landsharkbicycles.com

    first pic is a nice TIG weld.
    2nd is a landshark fillet
    dave
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  3. #3
    blame me for missed rides
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  4. #4
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    that's actually what I had just read before posting

    just wanted to hear from real world folks what's going on with their ride

    in a week or so I might pull the trigger on a new custom SS 29er EBB rig and sell my monkey and there is a considerable difference between tig and fillet prices
    Rudy Projects look ridiculous

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  5. #5
    don't try this at home
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    Quote Originally Posted by d_piddy
    IF and MC are both TIG. All the Vultures I've seen are also TIG. Don't know about those other folks. Titanium can only be tig'd. Fillets are brazed, not welded. if you're going for function over fashion than TIG is the way to go,
    why? my fillet brazed frame is holding up just fine.

    Curtlo only does fillet brazing and sycip can do both but fillets are extra.

    back in the day, the best mtb frames were fillet brazed, ritchey, fisher, salsa, etc.

    "but fillet brazing is more of a road bike thing so I don't know if it is even fashionable in the mtb world. "

    fillet brazing is not that common anywhere, even in the road bike thing. personally i think they are much more aesthetically pleasing then any tig joint, that's why both my mtb and road bikes are fillet brazed. it's just a nice smooth transition.

    below are fillet joints on my mtb (green) and road (yellow). it has both function and form.
    Attached Images Attached Images

  6. #6
    Witty McWitterson
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    I like fillets. They're pretty. [Pics]

    I've got a Rick Hunter that is fillet brazed. Great frame, and I think more athestically pleasing, as well as creating a stronger joint. Thats what the point behind FB really was in the day before the advanced tubing we have now. Fillet didn't heat the tube as much, allowing it to keep much of its strength. Thats why you see so many of the older high end frames were FBed. If it comes down to it, my next custom frame(if I don't build it myself) will be FB again(and maybe even by Rick again).



    Just a regular guy.

  7. #7
    all hail der Fuhrer Bush
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    aesthetics aside...

    fillet brazing is less destructive to the steel tubing, because it's accomplished at a lower temperature. Tig welding produces a narrow heat-affected zone a ways behind the weld where the steel loses some strength and becomes more brittle. Tube makers compensate for this with thicker butting. To verify this, ask any builder who is competent in both fillet brazing and TIG welding and has no financial axe to grind. Tom Ritchey would be a good one to ask, for starters.

  8. #8
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    Fillets for me...

    Curtis Inglis https://www.ingliscycles.com/ uses fillets for his Retrotecs. I like mine a lot, and as luck would have it, he builds 29er's as well.

    <img src="https://gallery.consumerreview.com/webcrossing/images/fillet.jpg">


    Ken

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