Weld procedure qualification and welder qualification steps

Weld Procedure Qualification

The welding engineer write a preliminary welding procedure specification for the test coupon to be welded

Welder makes the text coupon in accordance with the PWPS.

Welding inspector records the welding conditions used to make the coupon.

A third party inspector may be requested to monitor the procedure qualification.

Qualification Of A Welder.

The welding engineer writes a WPS for a welder qualification test piece.

Welder makes a test piece in accordance with WPS.

Inspector monitors the welding to ensure that the welder is working in a accordance to the WPS.

A third party inspector may be requested to monitor.

Coupon is NDT'd in accordance to the standard specified.

Coupon is destructively tested ( Tensile, Bend, Macro tests ).

The code standard client may require additional tests such as hardness, depending on material and application.

A WPQR is prepared by the welding engineer giving the results and details of the test.

If third party inspectors is involved he will be requested to sign the WPQR as a true record of the test.

Coupon is subjected to NDT in accordance with the methods specified.

Certain materials and welding process, may be destructive tested i.e. bend test, macros.

welders qualification certificate is prepared showing the welding conditions used for the test piece and the range of qualification allowed by the standard for production welding.

if a third party is involved, the would endorse the qualification certificate as a true record of the test .