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  1. #11
    Join Date
    Jan 2010
    Location
    Bristol, UK
    Posts
    9

    Default

    Hi con_fuse9,

    The 'bike I'm working on - a Harris F1 - was hand-built in very limited numbers (about 6 of them, around 1987-89), fabricated from individual pieces of box-section alloy TIG welded together. The seat sub-frame that I want to build is a seperate item, bolted to the main chassis - so I've no concerns over messing up the original 'bike itself whilst I learn to weld.

    The material I'm using is 1/2 inch box-section alloy, either 6082, or 6063 - 3/32" wall thickness. Tungsten is 3/32" 0.8% Zirconium, cup-size is 7/16", filler-rod is 3/32" aluminum with 5% silicone - shield gas is Argon.

    I find that with a foot-pedal 80 Amps is fine, I'm only using all the Amps on start-up to get the puddle formed, then backing-off as I run the weld. 75% balance seems ok, I've tried playing around with this but it doesn't seem to make allot of difference - maybe I'm missing something(?).

    With the frequency I'm finding 120Hz gives a more focussed arc, a more controlled weld puddle, and I can control penetration better with my travel speed. Early days yet, so maybe as my technique improves I'll come down on the Hz a little, but as you say - personal preferance maybe.

    Thanks for the advice, it's still early days - reckon I'm going to need a fair bit more practice before I get to the skill-level that I'm looking for

    FL
    Last edited by flatline; 01-11-2011 at 08:41 PM.

  2. #12
    Join Date
    Jan 2011
    Posts
    4

    Default

    thats kinda crazy

  3. #13
    Join Date
    Jan 2010
    Location
    Bristol, UK
    Posts
    9

    Default

    Quote Originally Posted by vryndpndnt View Post
    thats kinda crazy
    What is it that's 'crazy' mate? - would be good to hear your opinion - cheers...
    Dynasty 200 DX...

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