Push vs pull

  1. Madforwelding45 Member

    Messages:
    78
    Location:
    Tipperary
    Hey guys this mite be a stupid question. But you normally push the gun mig welding . But is it true you get more penetration if you pull
     
  2. fizzy Forum Supporter

    Messages:
    4,935
    uk
    I have seen several videos where they say it doesn't really make much difference.
     
  3. atomant48

    atomant48 Member

    Messages:
    766
    Salisbury UK
    I’m a total amateur so can’t comment on the technicalities but I find it easier to see (and therefore control) the weld Pool when I push.
     
  4. Brad93

    Brad93 M J B Engineering

    Messages:
    6,304
    Location:
    Essex
    Your weld will be more visually appealing pushed.
    Pulling the torch tends to create a peakier weld profile. Pushing flattens the weld out.

    I’ve done procedures with a pulled torch (trailing gun angle) and they’ve passed.

    You do need to be careful with your gas, on butts. Very easy to have a lack of gas coverage if your travel speed is quite fast.
     
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  5. earthman Member

    Messages:
    1,097
    To me pulling the torch feels more natural than pushing so I've kinda stuck with that,...now I can blame that for my welds looking crap then.:laughing:
     
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  6. R-D-R Forum Supporter

    Messages:
    1,003
    Location:
    Derbyshire - England
    I’m a amateur I push and pull, probably 90% of the time I push though.

    tons of opinion and content on the web some of it is this opinion some of it has physics behind it. I’m sure for professional applications there are key considerations but if your new I would just get stuck in. Push is easier to see, control and looks better so try and lean towards that but don't get hung up on it if your starting out.
     
  7. Burdekin

    Burdekin Chief Bodger

    Messages:
    4,774
    Location:
    Aberdeen
    Me too. I was taught stick welding and only used stick for years so always pulled it along so when learning mig it was a little weird pushing the torch.

    If it produces slag then pull, if no slag push.
     
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  8. Munkul Member

    Messages:
    1,008
    Cumbria, UK
    MIG - generally push 75-90 degrees, position my head so I can see the front of the puddle.

    Stick - generally pull around 75 degrees, position my head so I can see the back of the puddle.
     
  9. pedrobedro

    pedrobedro Man at Matalan

    Messages:
    9,933
    Location:
    CX Derbyshire
    We tried a pulse mig on aluminium at the welding suppliers and when you pulled the torch there were black spots in the weld, pushing was perfect indicating that gas cover was lacking in the pull weld. Increasing the gas flow didn't make any difference. On steel I tend to use whatever direction is convenient.
     
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  10. Hood

    Hood Forum Supporter

    Messages:
    9,648
    Location:
    Carnoustie, Scotland
    No matter whether pulse or standard spray Mig on Aluminium you should always push unless there is absolutely no physical way that you can.
     
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  11. Mr Roo Member

    yeah, pretty much this. spent a number of years MIG’ing aluminium extrusions for curtainwalling. Anything from 5mm to 25mm plate. Best result achieved by weaving, but never pulled unless totally out of position.
     
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  12. Madforwelding45 Member

    Messages:
    78
    Location:
    Tipperary
    Cheers guys . I was using a mates jasic mig 250 over the weekend I found it easier to push at least I could see the joint in front of me. Maybe that's just me. What a sweet little plant it was
     
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  13. earthman Member

    Messages:
    1,097
    Just been watching this video on the pull and push techniques, interesting cross section pictures start at 2.26 :)

     
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