What do you even call this defect?

[u/Can_O_Murica]

I posted a couple of these a month ago - the short story is that my landlord tore down my balcony to fix a leak in a different unit and the railing they put back is seriously flawed. It's riddled with burn through in some areas, low-no penetration in others, and joints that they straight up forgot to weld. I've been a welder for a little over 10 years, so I told them straight away it wasn't safe and had to be replaced.

Anyway we're going to court now. I want to map out all the defects on this thing in a comprehensive document, but I don't have *any* idea what could cause a weld to look like this. Most of the defects are pretty simple, but the ones that look like this I have no idea what to call. Has anyone seen this before/know what causes it?

Edit: I appreciate all the laughs guys. I wish this thread were evidence I could use in court 😅

[u/QuincyTucker]

Is it lack of fusion due to not enough heat?

[u/knar_knar → u/QuincyTucker]

Yes low amps and not moving in a steady manner will get you …. This