I am relatively new at MIG welding but have been doing quite a bit of it lately. The regulator on the argon/co2 tank is broken and only reads in psi not pcf. Most welds have been very constant and during grinding no air pockets have be found. I have the voltage and wire speed down because I am welding fairly thin metal, .063 in wall thickness. Once I get a new regulator and a fresh tank of shielding gas (tomorrow) I am going to go back over the welds that showed signs of bubbles.
What is the decrease in strength related to bubbles?, I know it creates stress concentrations. Am I simply not creating a proper shield around the arc? while I am welding either by moving to fast or welding at odd angles and such.
Any information would be greatly appreciated.
What is the decrease in strength related to bubbles?, I know it creates stress concentrations. Am I simply not creating a proper shield around the arc? while I am welding either by moving to fast or welding at odd angles and such.
Any information would be greatly appreciated.