Welding Work Instruction
A simplified, job-specific instruction for the welder based on the validated WPS to ensure correct execution on the shop floor.
Physical-Chemical Mechanism of Action
The Welding Procedure Specification (WPS) is a specialized instruction that guides the welder through the necessary steps and parameters. It is based on the validated material process specification and considers the specific properties of the material to be welded as well as the desired mechanical properties of the weld.
Metallurgical Relevance & Risks in Welding
The WPS is crucial for weld quality and safety. An inaccurate or missing WPS can lead to defects such as porosity, inconsistencies, or excessive residual stress. This increases the risk of cracking and reduces component lifespan.
Workshop Practice & Action Instructions
In practice, the welder must carefully follow the WPS by adhering to specified parameters such as voltage, temperature, and time. It is important to regularly review and update the WPS to ensure it meets the latest standards. Additional tests should be conducted as needed to confirm weld quality.