Thank you guys for your help! I was able to convince my technician that the problem was with deburring after cutting. After a little experimenting, he has been able to flare without cracking the tube.
I've already asked this in the aerospace forum, thought I'd try over here. I'm trying to single flare 1/4 and 3/8 OD .035 thick 2024-T3 tubing and I'm getting cracking. I think the problem is in the tube prep. Does anyone has a working process; cutting, filing, deburring, sandpaper grit?
I'm using a flare die, 37 degrees. I think the problem is in the tube prep. I was hoping someone out there had a system down; type of cutter, file used for chamfer, sandpaper grit for deburring? It's my understanding that the cracking is caused by improper deburring?
