rb26deet32 Posted December 20, 2011 Report Share Posted December 20, 2011 Anyone know if it's possible to weld a metal rod to another rod end to end when they are 2" in diameter? Solid steel. Just wondering if it's even possible before I waste any more time on it. I'm thinking if I chamfer all the way around and then fill it all in it should work. But I just don't know if it will penetrate all the way to the center... Quote Link to comment Share on other sites More sharing options...
wnaplay1647545503 Posted December 20, 2011 Report Share Posted December 20, 2011 I know very little about welding however I would think you would want to grind the ends like a chisel shape, put ends together with tiny gap in between and weld them together, flip and grind, then another pass, flip and grind and repeat until its all done. It will take a long time I would guess and are you using a tig welder? Quote Link to comment Share on other sites More sharing options...
Alex L. Posted December 20, 2011 Report Share Posted December 20, 2011 What's it for? Is it structural? What type of welding are you doing? Quote Link to comment Share on other sites More sharing options...
Nickey4271647545519 Posted December 20, 2011 Report Share Posted December 20, 2011 It's possible. They have commercial welders that are capable of 15+ inches of penetration. Quote Link to comment Share on other sites More sharing options...
TurboRust Posted December 20, 2011 Report Share Posted December 20, 2011 when i have seen someone do this in the past, the preferred way is to slip both pieces into a sleeve that fits tightly on both and weld the sleeve. Quote Link to comment Share on other sites More sharing options...
rb26deet32 Posted December 20, 2011 Author Report Share Posted December 20, 2011 I know very little about welding however I would think you would want to grind the ends like a chisel shape, put ends together with tiny gap in between and weld them together, flip and grind, then another pass, flip and grind and repeat until its all done. It will take a long time I would guess and are you using a tig welder? I decided to just start doing it. I'm grinding both ends that are going to be welded together into what looks like a punch. 45* chamfer going in but I'm going to leave about 3/4-1" flat so it will stay straight. Once I finish grinding on the other one I'll see if it's still lined up. Then I'll do some high temp tacs followed by some slow passes all the way around. And then I'll just fill it all back in. Also, I was using a miller 180 mig but now I'm using a miller 652 mig. Quote Link to comment Share on other sites More sharing options...
AJ Posted December 20, 2011 Report Share Posted December 20, 2011 http://www.hobartwelders.com/weldtalk/archive/index.php/t-17545.html Quote Link to comment Share on other sites More sharing options...
rb26deet32 Posted December 20, 2011 Author Report Share Posted December 20, 2011 http://www.hobartwelders.com/weldtalk/archive/index.php/t-17545.html Thanks. That's what I ended up doing. I did try what I was saying (cone/pencil way). I tried it on some scrap metal that was smaller diameter than what I'm welding and it was getting maybe 80% penetration. So I basically had a pencil that went to almost a flat head. Was easy as hell to weld since it was flat instead of round. But I think that was the longest constant welding I've ever done lol. It looks pretty good though. Just gotta grind it a bit and sand it and hopefully it wont break again. Thanks. Quote Link to comment Share on other sites More sharing options...
AJ Posted December 20, 2011 Report Share Posted December 20, 2011 depends on how you treated it. chances are the welded area won't break again but right next to it will. you should stress relieve it to help prevent it from breaking. Quote Link to comment Share on other sites More sharing options...
TurboGoKart Posted January 4, 2012 Report Share Posted January 4, 2012 Wtf is 2" in diameter, solid steel??? Quote Link to comment Share on other sites More sharing options...
Lustalbert Posted January 4, 2012 Report Share Posted January 4, 2012 Wtf is 2" in diameter, solid steel??? Better question: What were you doing to break a 2" solid rod? Quote Link to comment Share on other sites More sharing options...
ross Posted January 4, 2012 Report Share Posted January 4, 2012 Driveshaft for an Abrams tank. Quote Link to comment Share on other sites More sharing options...
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