Making some racking that needs to be welded in place. Got the first one done but having more bowing than expected. What's the best way to take it out? Don't really have much for tools. Welder, torch, and grinder. Press is not big enough to fit this in. I do have a chunk of 2x4 tubing thats a 1/4" wall compared to the 1/8 wall on the 1 1/2 tubing.

Will probably try and clap the others to the 2x4 tubing before welded next time. As this time I thought I was managing the heat better.