WELDING PROCEDURE QUALIFICATION FOR WELDING WEAR REPAIRS
WELDING PROCEDURE QUALIFICATION FOR WELDING WEAR REPAIRS
(OP)
Hi everyone
I'd like to know your opinion for the following case:
I'm quite familiar with the elaboration of documents such as WPS or PQR and WPQR when using for example ASME code SEC IX or AWS D1.1 concerning pressure vessel or steel structure erection. I have a collegue that consult me what happens with weld related to wear repair, this company has some shaft that normally are reconstructed using submerged arc welding and they are having some troubles because it does not last what his supplier is saying. I haven't found yet a specification that suggest me which would be the appropriate test to perform (Tensile bending etc...) and what kind of coupon should be used in order to perform a welding procedure qualification for this type of repairs..
Anyone can give me an advice on which specification or document should I use to elaborate WPS, WPQR and PQR for this procedure and ensure good welding quality
I will really appreciate your assistance
BEst regards
I'd like to know your opinion for the following case:
I'm quite familiar with the elaboration of documents such as WPS or PQR and WPQR when using for example ASME code SEC IX or AWS D1.1 concerning pressure vessel or steel structure erection. I have a collegue that consult me what happens with weld related to wear repair, this company has some shaft that normally are reconstructed using submerged arc welding and they are having some troubles because it does not last what his supplier is saying. I haven't found yet a specification that suggest me which would be the appropriate test to perform (Tensile bending etc...) and what kind of coupon should be used in order to perform a welding procedure qualification for this type of repairs..
Anyone can give me an advice on which specification or document should I use to elaborate WPS, WPQR and PQR for this procedure and ensure good welding quality
I will really appreciate your assistance
BEst regards





RE: WELDING PROCEDURE QUALIFICATION FOR WELDING WEAR REPAIRS
RE: WELDING PROCEDURE QUALIFICATION FOR WELDING WEAR REPAIRS
RE: WELDING PROCEDURE QUALIFICATION FOR WELDING WEAR REPAIRS
RE: WELDING PROCEDURE QUALIFICATION FOR WELDING WEAR REPAIRS
The requirement for UT is what I normally specify for rotating equipment shaft restoration including the application of hardfacing on a shaft.
The qualification of weld procedures is proper but when it comes to execution, you need some form of NDT to assure adequate fusion with the substrate. This is why I singled out UT in addition to sectioning the coupon and performing all required tests as part of the procedure qualification in accordance with Section IX.
RE: WELDING PROCEDURE QUALIFICATION FOR WELDING WEAR REPAIRS
Thank you for your explanation. My thought is that if the LP is good on the edges, it is probably good underneath, especially if you examine the cross-section sample of the PQR. Trying to distinguish the fusion line reflection from a small lack of fusion would require much experience and special UT setup, espcially if the overlay is only 100 mils. But you make a good point.
RE: WELDING PROCEDURE QUALIFICATION FOR WELDING WEAR REPAIRS
Steve Jones
Materials & Corrosion Engineer
http://www.linkedin.com/pub/8/83b/b04
RE: WELDING PROCEDURE QUALIFICATION FOR WELDING WEAR REPAIRS
Thanks again for your assistance
RE: WELDING PROCEDURE QUALIFICATION FOR WELDING WEAR REPAIRS