Posted by admin on Sunday, May 10, 2009 · Leave a Comment
I am taking a night class in welding and am trying to get W.A.B.O certified (Washington State) in vertically up using 7018 stick. One instructor says you can oscillate stightly the other says you can't you have to use string welds who is right? And are there any other pointers also? Thanks in advance
Low hydrogen rods (7018) are mostly used in structural welding and are not deep penetrating. Generally the root pass is done with 6010 which is deeper penetrating and solidifies fast making it easier to fill in small gaps in the joint. When running 7018 up you should weave it. Use the "u" pattern or a crescent weave and slowly walk it up your vert. Those patterns will be better than the side to side when your learning. I weave the 7018, the guys I work with weave, other guys with our company doing x-ray welds weave 7018. I doubt the knowledge and experience of your instructor that says you cant weave 7018 on your cap pass.
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