Hi all! Being a student in NDT I was going through this youtube video and have a doubt regarding the welding process they're using. At 3:32,3:42 and 6:59 he is using Mig welding, i guess...But, at 5:55 he's using Tig maybe? can anyone correct me.. Thanks for your reply :) [youtube]https://www.youtub...

I am able to see some slag here...maybe they have grinded the weld after that...what do u say. Also in the private jet aluminum welding why is he just tack welding rather than seam welding it together

How are you so sure they are mig welding? They could be flux core as well...any ideas

Hi all! I came across these videos in youtube a couple of days ago...what welding do you think is used in this process? I guess it to be TIG welding for both of them... In the first video he is tack welding and in the second weld there is orbital TIG welding process of the underframe pin of a locomo...