Hi guys Kindly explain the below

[kunjhon]

Hi guys

Kindly explain the below by examples. I didn't understand


When making root deposits only using GTAW, SMAW,
GMAW, PAW, LBW, LLBW, and SAW, or combinations of
these processes, a PQR for a process recording a test
coupon that was at least 1/2 in. (13 mm) thick may be
combined with one or more other PQRs recording
another welding process and any greater base metal
thickness.
 In this case, the process recorded on the first PQR may
be used to deposit the root layers using the process(es)
recorded on that PQR up to 2t in thickness on base
the metal of the maximum thickness qualified by the other
PQR(s) used to support the WPS.

 

[david339933]

Search the site, this has been discussed many times.

 

[weldstan]

Seems self-explanatory to me. Do you need an example?

 

Suggest retaining a Welding Engineer.

"Everyone is entitled to their own opinions, but they are not entitled to their own facts."