Weld Discontinuities-Causes and Cures

摘要

Types of discontinuities normally encountered in aluminum arc welds and their common causes have been reviewed. By understanding aluminum's characteristics and the cause of the weld discontinuities, proper corrective action can be taken when the welding procedures are being established or when a problem is indicated by quality control inspection of production weldments Through the use of proper welding procedures and welding equipment and reasonable production control of material cleanliness and joint fitup, consistently sound and satisfactory welds can be fabricated in aluminum alloys to established codes or specifications. Probably the best quality control is a properly trained, conscientious welder.