Large or complex metal structures are often constructed by forming simpler parts or components that can then be joined together by welding.
Carbon steel, stainless steel and aluminium are the metals most commonly used in manufacturing, so welding technology development has largely concentrated on these.
Selection of a suitable joint configuration and appropriate preparation are absolutely critical to making effective welded structures. Cleanliness is vital, so moisture and contamination must be eliminated before quality welds can be produced.
Welded seams often need to withstand subsequent bending or machining, so the integrity of deposited weld-metal is crucial and defects like porosity, inclusions, undercutting, and spatter need to be avoided.
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