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A Welding Procedure Specification (WPS) is a critical document that outlines the procedures and parameters for welding operations. It provides detailed guidance on welding variables to ensure that the welds meet the required quality and mechanical properties. Each WPS is tailored to specific material alloys and welding techniques, and it is developed based on relevant codes and engineering standards.
The WPS is designed to standardize welding practices, ensuring that welders consistently use accepted procedures to achieve reliable and high-quality welds. It serves as a comprehensive guide for achieving repeatable and trusted welding results.
A Procedure Qualification Record (PQR) documents the welding data used to create a test coupon. The PQR demonstrates that the welding process produces welds with the correct mechanical and metallurgical properties. It is an essential component in validating the effectiveness of the WPS.
Develop a Welding Procedure Specification (WPS):
Create a detailed WPS based on industry standards such as ASME Sec IX, ISO 15609, or AWS D1.1. This document outlines the welding parameters and procedures to be used.
Conduct Welding and Inspection:
Weld a test piece following the specifications outlined in the WPS. A certified welding inspector, such as an AWS Certified Welding Inspector (CWI), witnesses the welding process and records the welding data, including current settings and pre-heat conditions.
Perform Testing:
The test piece undergoes both Destructive Testing (DT) and Non-Destructive Testing (NDT), including radiographic and mechanical tests, as specified by the welding procedure standard. These tests are conducted in a qualified laboratory, with the Inspection Body potentially witnessing the tests and reviewing radiographs.
Document and Endorse:
If the test results are successful, complete the necessary documentation. The test body’s surveyor reviews, signs, and endorses the documents, validating the procedure.
We bring the right people together to challenge established thinking and drive transform in 2020
We bring the right people together to challenge established thinking and drive transform in 2020
We bring the right people together to challenge established thinking and drive transform in 2020
APS Group provides a wide range of services, including third-party inspection, pre-shipment inspection, expediting services, and certified training courses. We specialize in inspection services for quality assurance, compliance, and operational excellence.
PQR/WPS preparation ensures that welding procedures are standardized, compliant with industry standards, and capable of producing high-quality welds.
A PQR requires both Destructive and Non-Destructive Testing, including radiographic and mechanical tests, to ensure that the welds meet the specified properties.
A WPS is a detailed document that outlines the welding procedures and parameters needed to achieve high-quality welds. It ensures consistency and compliance with industry standards.
A PQR is a record of the welding data used to produce a test coupon. It verifies that the welding process produces welds with the required mechanical and metallurgical properties.
PQR/WPS preparation ensures that welding procedures are standardized, compliant with industry standards, and capable of producing high-quality welds.
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