What can contribute to the development of weld defects?

The development of weld defects can often be traced back to variations in the welding process, which can include altering weld designs and procedures. When changes are made to established welding methods—such as adjustments in the type of materials used, the welding technique, or even how the weld is executed—these alterations can lead to inconsistencies in the weld quality. This can result in issues like incomplete fusion, porosity, or cracking, as the new procedures may not be compatible with the existing design specifications or material properties.

In contrast, strict adherence to design rules, using certified materials, and conducting high-quality visual inspections are practices aimed at maintaining and ensuring weld integrity. These methods help prevent defects rather than contribute to them. For instance, following design specifications minimizes the risk of error, certified materials ensure proper composition and properties, and inspections are essential for identifying potential issues before they become significant problems. Thus, altering design and procedures is the primary contributor to the risk of weld defects.