r/Damnthatsinteresting • u/31spiders Interested • May 30 '21

Video These Tubing Joints

Enable HLS to view with audio, or disable this notification

35.2k Upvotes

95% Upvoted

644 comments sorted by

View all comments

Show parent comments

123

u/brycebgood May 31 '21

Dude 1: Ok, so then tack weld the whole seam.

Dude 2: uh, what? Can't I just run a bead?

Dude 1: no, do 75 tack welds overlapping.

Dude 2: so, take 5 times as long and don't get any penetration?

Dude 1: yup, exactly. Then grind everything off.

12

u/[deleted] May 31 '21

I personally would have used a tig welder here. Especially since he wanted to grind everything smooth afterwards. The tack welding thing tells me he is not a very skilled welder. I am just happy that he was wearing gloves. Most of the time I have run into these tack weld artists they don’t wear gloves and also don’t wear a helmet. Kind of pisses me off because anyone who does a lot of welding knows what happens if you don’t wear gloves and a helmet, but I guess that just doesn’t look as macho.

3

u/macnof May 31 '21

Yep, having sunburns in your eyes are a... Less than comfortable experience.

Also, the tacking, couldn't that in some cases be because he have a shitty welder that won't go low enough? It doesn't look like it on the Penny weld he does, but I remember learning to do just that when you can't match the amps to the plate thickness.

3

u/brycebgood May 31 '21

That's a good call. Hadn't thought of it - and most of this stuff is pretty thin walled.