Classification of Weld Imperfections
Weld imperfection classification is a method for categorizing deviations in weld metal by type, size, and frequency to assess acceptability. It helps with quality assurance and defect analysis.
Physical-Chemical Mechanism of Action
Weld defects occur due to insufficient welding parameters, material defects, or improper technique. They impair the mechanical strength and service life of the weld metal.
Metallurgical Relevance & Risks in Welding
Failed weld seams can lead to cracks, wear, or deformation. They reduce the load-bearing capacity and toughness of the component, posing safety risks.
Workshop Practice & Action Instructions
Use a standardized classification scale (e.g., EN 287) for assessing weld defects. Document the type, size, and frequency of defects accurately. Ensure correct welding parameters such as temperature, voltage, and time. Use high-quality materials and conduct regular quality controls.