I meant that if you can write a WPS in accordance with Section 3, brand name is not an essential variable. If you must consider CVN requirements, making brand an essential variable, then you'll have to Section 4. (You already knew that).
My main point is that if your parent company has already done the testing then you have a road map on what to do. If you must test, then do the same things in the same way, that is unless your welding needs are significantly different. For instance, if you typically run larger or smaller fillets than you parent company does, and you find you are always on the edge of their PQR limits, you would then choose parameters that are more appropriate for your own welding. However, you could probably still do your testing in the same basic way.
If the parent company's quality and management program is the same as your company's, that is if you are all under one big happy umbrella, then it may be acceptable to use the WPS without further testing. Some customers are OK with that, and some are not, so check first.
I'm just not getting my head around this, I thought I required a Weld Procedure Qualification (WPQR) and a Weld Procedure SPecification (WPS) and that one is born from the other. In view of your last comments, I can put a WPQR (is this the same as a prequalified WPS)together in accordance to section 3, which does not control my consuambles in the same way as Section 4? However I then surely need to qualify my welders accordingly and to do this I have to as per section 4, which brings me back to the restriction on consumable? Am I missing something glaringly obvious? In addition to this Section 3 is very vague!
Thanks for your continued help!
I have read further into AWS with regards to CVN testing, particularly Annex III. Does the CVN test requirements only apply if the WPS is going to have impact tests and the welds thereafter. If this is the case just because we are in production, welding CVN tested materials, does this exclude the essential variables for CVN testing?
Bryan,
If I may, it seems as though, to me, and not meaning to be insulting at all becasue if I am correct I have done the EXACT SAME THING. And perhapos all of us have.
Your biggest problem is preconceived notions that you can't let go of. The answers to the questions you've asked thus far have been handled quite clearly and quite well by the respondants, and yet it just seems to lead to more confusion for you, in my opinion because it doesn't fit your established ideas. You're trying to make the answers fit what you think, and it doesn't fit.
I would suggest that you try as much as you can to clear your head of your current thinking habits, sit down with D1.1 Sections 3, and 4 and read them from front to back taking it one step at a time starting from square one.