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Aluminum 6g test.

thread178-94935

Aluminum 6g test.

Aluminum 6g test.

(OP)
We are trying to certify our welders using D1.2 code but alot of the welders are having touble with the root opening which calls for 1/16" max. on tubular groove welds without backing figure 3.29. The material is 6061-t6 3" round tube 1/4" wall thick using 4043 welding rod.Also what kind of wrap around jig should I use and were can I find one.
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RE: Aluminum 6g test.

Can't answer your root opening problem, but as for the jig, if you want a fancy one, the best available is from traingle engineering.  
http://www.trieng.com/bend.html
If you want one that works, and usually take a little modification in order to comply with the code, you can find any "Hossfeld" type bender, used for beding ornamental iron and the like.
http://www.hossfeldbender.com/
http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=31980

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