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Welding student in need of tips and tricks for measuring/cutting metal for
Okay so I'm a welding student and I recently had to read a blueprint for a box and measure then cut the pieces and weld it together for it to get pressure tested.
Here's what happened:
I measured all my pieces like 8 times each to make sure I measured correctly, as soon as it was perfect, I used a track torch to cut my pieces, they looked good except the pairs of metal (pices opposite of each other need to be the same size) were a bit off of each other. I thought it wasn't a big deal (bad idea, i know) and when I grinded them down and tried to fit them together, there were huge gaps everywhere! It was a nightmare!
I fit it together the best I could but the edges didn't match up the way they needed to but I was dumb enough to procede to weld it together, in position. When we pressure tested it, there were leaks EVERYWHERE! I tried to fix it multiple times but to no avail, there were still leaks. My instructor said it was useless to try fixing it. I've done this box about 3 times and the same thing keeps happening!
Besides the obvious rookie mistakes, what am I doing wrong? Any tips on how to prevent this from happening?
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Your question is pretty damn specific, I'm not sure anyone is going to be able to offer you much help.
My best advice would be to measure the final pieces, and try to figure out which pieces don't match up with your initial drawings. You could also try measuring at each stage, since it seems like the grinding phase is when things went really off track.
Other than that, a craft like welding really takes a person in the room with you to help you. If you can't get any more of your teacher's time, maybe you ask another student to help you out.
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