Procedure Validation
Procedure validation is proof that a welding procedure consistently produces identical, high-quality results. It ensures all processes and parameters are reproducible.
Physical-Chemical Mechanism of Action
Procedure validation involves controlling temperature, voltage, and time during the welding process. These parameters must be strictly adhered to in order to ensure a consistent microstructure and high toughness of the weld.
Metallurgical Relevance & Welding Risks
If procedure validation is not carried out or fails, irregular microstructure formation and uneven stresses can occur. This leads to cracks, wear issues, and reduced weld service life.
Workshop Practice & Action Instructions
To perform procedure validation, follow these steps:
1. Define the processes and parameters to be validated (e.g., temperature, voltage, time).
2. Determine which quality characteristics are to be checked (e.g., toughness, hardness, cracking).
3. Perform multiple welding tests under the same conditions and document the results.
4. Compare the results with the specified standards and save the documentation.