Beginner welder: flux core mig

  1. Oisin F New Member

    Messages:
    7
    Location:
    Ireland
    Hi lads, I'm new here and new to welding. Here's a photo of a flux core mig weld I've done, I want your advice on it cos it's a sh*t weld and Idk what I'm doing wrong. There's a parameter guide with the welder for wire speed and voltage for what thickness you're welding. The weld looks like its just sitting on top of the Steel getting no penetration, any thoughts? Thanks
     
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  2. cumbriasteve

    cumbriasteve Moderator

    Messages:
    9,660
    Location:
    Cumbria UK
  3. Wozzaaah

    Wozzaaah The wizard of woz Staff Member

    Messages:
    14,446
    Wiltshire, UK
    Are you sure that's flux core wire?
    There's so much porosity it looks more like the result you get when using standard solid mig wire with no gas.

    edit: Is your machine actually set up to use gasless wire?
     
  4. Oisin F New Member

    Messages:
    7
    Location:
    Ireland
    Hi thanks for the replies, yes the welder is set up for flux core mig and when I bought it, it came with a coil of flux core wire
     
  5. Weld looks way too cold, also is it shielded or gas less wire and were you pulling or pushing the weldpool
     
  6. Oisin F New Member

    Messages:
    7
    Location:
    Ireland
    It's an esab welder so I looked up Esab flux core wire, this us what I came across, similar to what came with the welder when I bought it, I've only used solid wire with gas for mig welding before, never flux core. From the photo does that mean I need Co2 gas or is it optional? I'm dragging the wire backpurge, and it doesn't look much different when I put the settings at max
     
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  7. Wozzaaah

    Wozzaaah The wizard of woz Staff Member

    Messages:
    14,446
    Wiltshire, UK
    See...like I said, no gas!!
    That wire still needs a shielding gas, it can’t be used on its own.
     
  8. You need to use a shielding gas, either pure CO2 or an 80%Ar/20%CO2 mix
     
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