Weld Procedure Specifications & Qualification Flashcards

What document describes all the essential and nonessential variables required to produce a weld with the necessary properties?

Answer: Weld Procedure Specification (WPS)

A Weld Procedure Specification (WPS) is the document that prescribes all variables necessary to produce a weld meeting the required properties.

Which document provides the test results used to support and qualify a Weld Procedure Specification?

Answer: PQR

The Procedure Qualification Record (PQR) documents the actual welding data and test results used to qualify a WPS.

Under AWS D1.1, which of the following is considered an essential variable in a WPS?

Answer: Base metal P-number change

A change in base metal P-number grouping is an essential variable requiring requalification of the WPS.

A prequalified WPS under AWS D1.1 means the procedure:

Answer: Does not require a PQR because it meets all code-prescribed conditions

A prequalified WPS conforms to all prescribed limitations in the code and does not require a supporting PQR test.

What is the primary purpose of a Welder Performance Qualification (WPQ) test?

Answer: To demonstrate that a specific welder can produce sound welds using a qualified procedure

A WPQ test verifies that an individual welder has the skill to produce acceptable welds using a given procedure.

When a welder's qualification expires due to inactivity, the typical minimum period of inactivity that causes expiration under AWS standards is:

Answer: 6 months

AWS standards generally require requalification if a welder has not used the process for more than 6 months.

Which of the following changes to a WPS would typically be classified as a nonessential variable?

Answer: Changing the groove design within code limits

Changing the groove design within code-permitted limits is generally a nonessential variable that does not require requalification.