Re: [MW:21702] Table 4.5 34) ---AWS D1.1

Hi,

It simply means that when you CANNOT take away backgouging/backing from a wps, but you are free to include backgouging/backing in your wps. When a procedure is qualified with backgouging/backing, your wps will always be with backgouging/backing either ceramic, or permanent. But when you have a PQR without backgouging/backing you are free to include this procedure in your wps.

Hope it clarifies.

From: sutthipong .k <leonard_pick@hotmail.com>
To: "materials-welding@googlegroups.com" <materials-welding@googlegroups.com>
Sent: Tuesday, 26 August 2014, 9:08
Subject: [MW:21700] Table 4.5 34) ---AWS D1.1

Dear All
 
                  Please explain in table 4.5 34) The omission, but not inclusion, of backing or backgouging.
 
If i have PQR qualification test CJP single V butt joint with ceramic backing.
Question.
                     1.) Can i write WPS range qualify to backing gouging CJP double V or Single V butt joint.?
                     2.) And, if i have PQR qualified with back gouging, Can i write WPS range qualify with ceramic backing or not.?
 
 
Best regard.
Sutthipong.K
QA/QC Welding.

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