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  1. #31
    Join Date
    Jun 2007
    Location
    Vic
    Age
    48
    Posts
    544

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    I am not a welder but I think with your first weld, you moved a little too fast and current could be a little too high. The second attempt is a little low on current.

  2. #32
    Join Date
    Jan 2004
    Location
    Mackay North Qld
    Posts
    6,446

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    Quote Originally Posted by Mike4 View Post
    Maybe flux cored is not true mig , but if you need to work outdoors in a breeze , true mig is a complete waste of time and money as the shielding gas just blows away .Michael
    Michael

    While its true that a mig is useless in a breeze is also true that a Fcaw machine is useless for welding wall thickness, less than, say 2mm. Each machine and the process it operates under, shines its its own proper application.

    Its horses for courses. Many buy a wire feed mis-labelled as a MIG when it is equipped initially as a FCAW machine. Its essential that someone seeking a welding machine consider the type of welding they wish to perform and buy the machine that best suits this application.


    To weld in the dip transfer mode as required for welding light sheet metal, the wire needs to operate at around the 16 to 18 volt dip transfer range which suits solid wire very well.

    Flux core wire is not designed to run in dip transfer mode and that is the reason why attempts to use fcaw as a substitute for welding of sheet metal thickness are met with failure.

    As a (home) welding machine applied to light structural thickness it can work very well in the hands of an operator who has some understanding of the process and its techniques.

    Grahame

  3. #33
    Join Date
    Dec 2005
    Location
    South Australia
    Posts
    1,656

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    Why is this not in the welding sub forum

  4. #34
    Join Date
    Oct 2010
    Location
    melbourne, laverton
    Posts
    1,910

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    Quote Originally Posted by Retromilling View Post
    Gas/Gasless is a good ability to have because you never know when you have to do something outside like a trailer . I can fit a trailer inside my shop but some can't .
    The first welds looked better penetration to me but I'm a learner also . Some people just seem to be naturally good at welding and others have to practice a lot more .
    My Doctor says I have very high adrenalin output when stressed or excited and it makes my hands shake . Makes my stick welding much harder to get it neat and then my mate turns up and just welds like a expert with exactly the same setup but his hands are steady as . It does have it advantages like I feel very little pain in a fight or when injured at the time but later it hurts but for welding it's a big problem. I am hoping a Mig will make it easier with both hands on the gun. Once I get a Mig I am going to get some lessons so I don't start with bad habits .
    Hi do you get in many fights??


    Sent from my iPhone using Tapatalk

  5. #35
    Join Date
    May 2015
    Location
    Newcastle
    Posts
    62

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    Hey Tom, for a beginner it doesn't look to bad, I'm an old boilermaker with 45 years doing all sorts of things. I use an expensive mig/tig and stick inverter but don't do much with these days. You're having a go and that's the first step. Don't be to critical, you're close to what you want, 1. Make sure your weld area is clean from rust and paint, (small welders we use at home don't like the dirt or paint). 2. Have a good earth. 3. Try to minimise the gaps while you're learning. 4. You could up your voltage just a smidge and 5. Travel a little faster when you lay your weld. It looks like most of your dags are from slow travel and nozzle gap (the gap between your nozzle and the weld). Play around with that, try changing your power setting 's a smidge up and down and your speed settings and try to close the gap a little between the nozzle and job. With a steady had and practice you'll get there. flux core has it's ups and downs but for what your doing there it's good, it does take a practiced hand to use it on smaller jobs. If yours is a newish welder it should do gas as well, but small steps are a good way to start

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