MIG welding overhead fillet
Posted: Tue Oct 22, 2013 5:29 pm
I posted this on welddit and I reckon I might as well post this here as well.
So in school I started doing MIG welding overhead fillets with 10mm plates but I just have some questions about doing it the right way. So when I use a near 90 degree angle or the angle I use for flat, It either gets really lumpy or just burns through like crazy! My settings for flat and overhead are the same (26.5-27 volts for 10mm). I asked the teacher for a demo and he told me to have a steeper push angle and go a little faster. This worked out really well and now I can make a nice flat bead that looks like it was done on flat but a smaller size. Now I have a few questions on overhead MIG. Is it okay to have a steep angle with MIG? I also realized that the sound is a lot different when welding overhead. Why is this? When my teacher gave me a demonstration, there was very little sound and it was almost like spray arc (again the setting was not changed). Is this acceptable? Enlighten me here.
So in school I started doing MIG welding overhead fillets with 10mm plates but I just have some questions about doing it the right way. So when I use a near 90 degree angle or the angle I use for flat, It either gets really lumpy or just burns through like crazy! My settings for flat and overhead are the same (26.5-27 volts for 10mm). I asked the teacher for a demo and he told me to have a steeper push angle and go a little faster. This worked out really well and now I can make a nice flat bead that looks like it was done on flat but a smaller size. Now I have a few questions on overhead MIG. Is it okay to have a steep angle with MIG? I also realized that the sound is a lot different when welding overhead. Why is this? When my teacher gave me a demonstration, there was very little sound and it was almost like spray arc (again the setting was not changed). Is this acceptable? Enlighten me here.