r/Welding

W50 I-beam with backer, 5/32 7018 at 140.

I'm fabricating some stuff for my truck and just want to know if I'm missing any obvious tells from these. To me they look ok, but I'm the farthest thing from a pro lol. Last couple pics are a goof with the cup and my first test welds as I learned the settings. Then I tried the small circles method and was happy with how they're looking. I tried beating on a test piece with a sledge and couldn't get them to separate, just bent above the weld.

am i doing something wrong or is this spatter normal with flux

Titanium weld for reference, because I have no issue with those. My question is for the inconel. Why does it look like it’s sunburnt and peeling? What can I do to prevent this?
Was pretty sure my tungsten wasn’t sticking out far at all but I might be wrong.
Thanks in advance!

For my internship assignment I need to make a space frame for a research vehicle. I've been teaching myself how to mig weld for the last 3 weeks because of it and here's a practice piece of mine in the photos. I still suck ass at tube welding and those I want to ask

1. How are my current welds and what's there to improve?

2. What are techniques or tips to attack tubular welds and to improve?

Round the circle, non rotated in horizontal welds. 5mm corner to corner, bis to mild.

It just kept sticking wat am I doing wrong guys

Ignore the bottom weld, that was my teachers demo weld

How would you go about removing this to re-use the nozzle? Not my doing.

Thread on nozzle.