What is the purpose of a welding procedure specification (WPS)?

The purpose of a welding procedure specification (WPS) is to provide a standard for weld quality. A WPS serves as a formal document that details the essential instructions for a welding operation, ensuring that the welded joint meets the necessary quality standards. It includes parameters such as the type of welding process, filler materials, joint design, and the specific welding techniques to be employed. By following the guidelines outlined in the WPS, welders can achieve consistent results that adhere to the desired quality requirements, which is crucial in construction and manufacturing where structural integrity is paramount.

While safety measures, material definitions, and repair techniques are important aspects of welding, they fall outside the primary function of the WPS, which focuses on maintaining the quality of welds made during fabrication or construction processes.