Old Brazing

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  • Anonymous
    August 20, 2009 at 6:40 am #15438

    Just wondering how the quality of an old braze compares to a mig. This restoration job I have has a few pieces of metal replaced that have been brazed, I forget what it is exactly…it’s a copper kinda color. The metal looks good and so does the braze, I’m just wondering if it’s ok to leave as is, anything I should know?

    August 20, 2009 at 7:53 am #15439

    if done right it’s probably fine … leave well enough alone … it’s lasted this long ?

    August 20, 2009 at 8:33 am #15442

    i agree with stone on this one 😉 😛

    Anonymous
    August 20, 2009 at 3:21 pm #15444

    thanks fella’s. What about treating it, should it be handled like any other peice of steel? I’m just a bit concerned as one of the guys say’s he recalled a lot of paint lifting problems over these kinds of brazes when they were common. It was before my time. here’s a pi btw:

    [img]http://img41.imageshack.us/img41/5818/dsc01354e.jpg[/img]

    August 20, 2009 at 5:24 pm #15446

    When I first started doing bodywork, all I had to use were torches. I would braze all my patch panels in. If I remember correctly, what caused problems with the repair not holding was when the flux was not cleaned off good enough. I usually just sandblasted everything with a handheld blaster to clean the joint , and give it some tooth.

    I concur with everybody else. The weld held this long. leave it alone, clean it (sandblast) and go on. Looks like the rest of the top of that fender could use a quick blasting anyway.

    August 21, 2009 at 1:57 am #15454

    :pcorn:

    August 21, 2009 at 3:29 am #15459

    I’ve done a bit of brazing in my past without any failures.
    But in my AirForce Repair manuals they make it very clear that just like with Aluminum, give it enough stress, and or enough time, and it will in no doubt fail.

    But that could be decades if not longer.
    Personally, that looks like it would suck to reproduce. and there is no clean way to fix it. So I’d say leave er’ as is.

    August 21, 2009 at 3:32 am #15460

    That is Unless you can make some nice dough out of it of course. 😉

    August 21, 2009 at 3:37 am #15462

    I agree with leaving it and everything kevin said. Blast clean then epoxy primer then filler.

    August 21, 2009 at 4:07 am #15465

    One thing I would do. is make this patch very clear to your client.
    That way he can decide what he wants you to do.
    And also if it does start to separate in say 5-10 years your ass is covered.

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