Procedure Qualification Test

Documentation demonstrating all the variables employed in the welding test as well as the documented inspection and test results is typically required for qualification testing of a welding technique. Documentation of the following variables is usually necessary: the type and dimensions of the joint design; the welding process used; the size, type, and classification of the filler alloy; the type and thickness of the base material welded; the type and polarity of the welding current; the amps and volts recorded; the travel speed during the welding process; the welding position; the preheating temperature; the interpass temperature; the post-weld heat treatment details; and so on.

The welding procedure specification (WPS) and the procedure qualification record (PQR) are the two categories into which welding procedures are divided. Each and every value utilized for testing and inspections based on the outcomes is immediately recorded in the procedure qualification record. Welders might find useful guidelines for welding operations in the welding procedure standard. To proceed with a welding test, all of these documents typically need to be approved. Size, material type, thickness, and procedure employed are all included in the documentation. All pertinent information, including the specifics of the inspection and test findings, should be included in the report. The documentation needs to demonstrate that these tests and inspections adhered to the requirements.

The inspectors must be certain they are qualified to carry out a task under the WPQ before they begin welding. The name and stamp number of the welder, the kind and method of the weld, the WPS ID used for the test coupon, and the base thickness are typically included in the checklist.

Standard processes assessed during welding certifications:

  Flat
  Overhead
  Horizontal
  Vertical