Is a fillet weld a CJP or PJP?

[Moneil]

I am working on some WPS documentation. Does a fillet weld fall under the classification of PJP or CJP? Or can a fillet weld be either type? Our WPS calls out fillet weld. Does fillet weld fully explain what is going on or do I need to specify full or partial penetration?

 

[connectegr]

A fillet weld is neither a partial joint penetration or a complete penetration joint. CJP and PJP welds are groove welds, as shown in their SWPS details, where the welds penetrate a defined thickness of the material. "Fillet welds have a triangular cross section and are applied to the surfaces or edged of the material they join." (AISC Design Guide 21) Fillet welds do not fully fuse the cross section of the elements to which they are applied.

Are you a CWI? A CWI is required to develop WPS documents.

http://www.FerrellEngineering.com

 

[connectegr]

And technically a WPS is required for fillet welds. However, AWS does not offer a SWPS. The WPS will require a specific electrode diameter in order to determine the number of passes required for each fillet weld size. Other information is also required based on the welding process.

http://www.FerrellEngineering.com

 

[dhengr]

Moneil:
You really shouldn’t be asking this kind of question here, it boarders on a, first day, classroom question and they are verboten on this site. Everyone must learn someplace or start their education on a subject someplace, but this isn’t a classroom or a textbook on a very important subject. And, your’s is a very basic question for someone claiming to be working on WPS’s. Furthermore, a bunch of acronyms won’t make you smarter if you don’t know what they mean, or the people you are communicating with don’t know what they mean.

You should be taking these types of questions to your boss or supervisor, so he/she knows what you don’t know and can offer arms length, eye contact, with a smile, instruction and advice to keep you out of trouble, which keeps them out of trouble. You must get comfortable with asking your boss questions like this, without embarrassment, to make that mentoring relationship work properly. Also, get some good books on basic welding, the Lincoln Arc Welding Foundation has some very good ones; AWS and AISC too, and study them. That learin will stick with you a lot longer than our answers to your question here. Read connectegr’s answers very carefully, because he did not say that the fillet weld does not fuse to the parent metal of the joint. And, what he might have said is that “CJP welds do fully fuse the cross section......” A small point, but one that you should know, if you are designing welds or working on WPS’s.