Outside fillet help.

[Spark plug]

I'm currently making some lock boxes for a friend. Made from 6mm flat and I'm finding it difficult to get a consistent bead, filling the fillet nicely without either not enough deposit to fill the join or getting too much overspill to grind off.

I'm using 1mm wire at about 200 amps.

Inside fillets are conning out ok.

 

[aametalmaster]

Are you welding them in the flat position? I would lower the heat a little and prop them on a 45 degree angle and run a downhill. Then you can watch the vee fill up where you want it...Bob

 

[norlander]

get a stick welder- don't the mig lads run roots in and then fill in and cap off using different settings?? -I don't know-but as a new mig novice I think thats what I would try with my 160amp mig if I did not have stick as well.

 

[Jan]

On material of that gauge I would be strongly tempted to turn down the heat (power) and wire speed a bit and then fill the fillet by weaving into it. I know it may not be as strong as a single straight weld, but on a fully enclosed box it shouldn't make all that much difference. At least you can more closely monitor and control the amount of added filler metal.

 

[Spark plug]

I got there in the end, turned the power down a bit and concentrated the weld higher up. It seemed to work well with goo penetration.

 

[Mr shiney]

What sort of goo were you using?