Welding

SMAW QW-253................. t essential variable QW-404.30

GMAW/FCAW QW-255........ t essential variables QW-404.30 & QW-404.32

ASME IX 2010 "Qualification Standards for Welding and Brazing Procedures, Welders, Brazers and Welders and Brazers Operators"

This should help....

http://www.metalwebnews.org/ftp/welding-design-TM5-805-7.pdf

Why don't you simply ask your customer what he WANTS or how wide a bead he will accept ?

We can give you all sorts of (good) answers but if your customer doesn't LIKE your weld, then our "industry-accepted" standards are of no use to you.

Regardless of what the specifications say, it is wise to remember that all fusion welds involve melting of metal. During cooling, the metal shrinks and creates stress, strain, or both, in the welded assembly. The narrower the molten region, the less affected the final assembly is from the shrinkage. This is why the high power density processes such as resistance, electron beam and laser welding produce less distortion in finished assemblies. Armed with this information, you may be able to answer your question.

This should help you:

• Welded_Joint_Design

• Welded_Steel_Construction_-_Lincoln

• Weld_Design