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  1. #16
    Join Date
    Aug 2008
    Location
    near Rockhampton
    Posts
    6,216

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    Quote Originally Posted by Hunch View Post
    Brazing aluminium used to be the only way to do it - using oxy. There's a flux core rod you use, but not many left who can do it now without ending up with a puddle...old school body builders and aviation welders might be the last hold-outs! That other method, without looking at the vid, I assume is the stirring/wire brush thing, is more akin to soldering.
    They make Durafix rods now for aluminium Not cheap though. I pay $7 a rod.

    Durafix Australia - Aluminium Fluxless Repair Rods

    https://www.youtube.com/watch?v=jijW310xvp4
    Gold, the colour of choice for the discerning person.

  2. #17
    Join Date
    Jan 2004
    Location
    Mackay North Qld
    Posts
    6,446

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    What about an entirely different approach? Internal connectors in many configurations are readily available.

    It might be a great deal less messing about, unless of course part of the school project outcome is to weld or braze aluminium tube.

    If you really must weld or braze, at least do a practice.

    Some of the lighter box sections are coated - not sure if its anodizing or something else. Bloody awful to join even despite cleaning off this crap.
    What ever it is can be a real PITA to weld and braze. A few scrap practice sections are advised before committing to some possibly expensive tube that might not be weldable.

    Flexliner | Tube Connectors


    Grahame

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