Welding defects, causes and correction
Welding defects can greatly affect weld performance and longevity. Having an understanding of the various defects, their causes and remedies can help to ensure higher-quality and longer lasting welds. This article details some of the more common welding defects, their causes and possible preventative and corrective measures.
By Leigh Baughurst* and Grant Voznaks**, Aspec Engineering
Upon detection of welding defects, an evaluation should be carried out to determine its severity, and appropriate action taken. Even the most inconspicuous weld defect can render a welded structure unfit to carry out its intended purpose.
Geometric imperfections
Geometric imperfections refer to certain weld characteristics such as fit-up and weld bead shape as determined by visual inspection. They are an indication of poor workmanship and may be cause for concern if they exceed the acceptable limits of the quality control code being used for the weld inspection.
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