I hate to spoil the fun but it really is a quality bit of kit from the sates, that's why I asked. I have seen quite a bit of this "pulse" technique.
This is a great discussion... anyone else.
I hate to spoil the fun but it really is a quality bit of kit from the sates, that's why I asked. I have seen quite a bit of this "pulse" technique.
This is a great discussion... anyone else.
Spot on wyn! It's just normal MIG done very poorly!
This has been done by a welder with very little pride in his/her work. They have started off the weld at the top right hand side of the picture and welded into the corner and that bit looks OK, the problems start at the corner where the welder is blind and has failed to penetrate both the top and bottom edges of the plate, as he has twisted the torch for the new weld angle,entering the longer straight, either the liner has twisted or it is already in a poor state, because from then on the wire feed is erratic and burning back to the tip. Any professional welder would stop and clean up, sort out the problem, but this one has just carried on till the end.
The visible weld around the boss seem acceptable and the visible weld on the bottom of the gusset plate is probably OK as he would have twisted the torch angle back to achieve the correct welding angle.
There would be no need to use the 'spotting' or as some mistakenly call 'pulsing' technique because the parent plate is easily thick enough to take a continuous weld.
Regards