Stop weaving. Stop whipping the torch. A mig run should look smooth, clean, flawless. I will take some photos later of what you should be looking for.
Stunning example brad.Here are some settings for you.
400mm/min travel speed
1.2mm G3Si1 CF Wire
Around 260-280A, probably 30V
It was done on the tractorStunning example brad.
Imagine the heat build up on that.
I know it’s for practice but just do 3 straight runs and stop. Any more and it’s spoiling things.
Moving too slow only leads to lack of fusion defects as the pool rolls over in front of your wire. It doesn’t increase penetration but it does increase heat input going in and it does increase the amount of reinforcement you stack into the joint. It decreases productivity also. Pick up the travel speed and bang one straight run down the joint. Leave it to drop below 100° and bang down another on the bottom toe. This second weld should cover around 60% (2/3) of your root run. Leave it to cool below 100 and bang another down at speed on the top toe of the second run. Job done and a great joint.
Why?im moving as slow as possibe,
Why?
what Brad said, when i run production work its usually a3 / a4 welds most of the time with 1,0mm wire. i set the machine high for a6 welds but then my movment speed increases to get that desired "a". when i weld something heavier i use 1,2 wire and dont run that fast. but thats for production work.With the 1.0mm wire you don't want to be going much bigger than 6mm fillets.