Weld quality refers to the overall integrity and performance of a welded joint. It is assessed based on factors such as strength, appearance, and resistance to defects. High-quality welds ensure that the materials being joined can withstand the intended loads and environmental conditions without failing. Several standards and tests, such as American Welding Society (AWS) guidelines, help evaluate weld quality. Common defects include cracks, porosity, and incomplete fusion, which can compromise the joint's effectiveness. Proper techniques, equipment, and materials are essential to achieving optimal weld quality in various applications, from construction to manufacturing.