Welding Basics: Techniques for Tig, Mig & Arc Welds : Welding Troubleshooting
Learn troubleshooting in welding from an expert in arc, tig and mig welding in this free DIY video. Expert: Malcolm MacDonald Bio: Malcolm MacDonald graduated from Connestoga College in 1968 taking the Fitter Welding Program. Filmmaker: Melissa Schenk
Video Rating: 4 / 5
@AustinSTEEL yeah….. Aboout!
@9057979 ikr, usually they dont know jack shit
very good tips.
POROSITY?
freedomisafag!
wow, tell us something we dont know…
tanx export
expert village is by far the worse thing ever
click on the add he has, thats called making money, you can do it to, it is wrong when you don’t tell the true facts, But he or what he pretends to be seams ok, cause he making money
porosity in the finished weld, which means that air bubbles get trapped inside the weld bead!It also means the metal has more carbon, or the cup size is wrong, the argon mixture or co2 is wrong, rust in the joint, or did you forget to clean the filler wire,(well it dose happen)preheat joint,( it will pull moisture out) The purpose of shielding gas is to keep the air atmosphere away from the weld pool. Without it, the weld pool reacts with the oxygen, nitrogen and hydrogen is that better
The guy is no more than a poster, he make money on his videos, like a Jack of all trades and master of none, Sorry dude! I am a retired Steamfitter, and control tech, UA, (union) I have the nuclear, oil, paper and food industries behind me, I have taught classes on , smaw, tig, mig, s/s 304-to 316ls, dissimilar metals, w/ k and J rings, pulsearc© and the bore scope process, and different type xrays you do a very poor job of explaining the processes of welding and techniques,
he has a canadian sounding accent
This bloke reminds me of a guy I know. He’s been welding pipe for 51 yrs.I’m thinking of chopping and dropping a beach cruiser.I think i’ll give him a shout.
This guy is good, not typical of expert village.
good points here.