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Welding technology involves the melting of metal to create goods. Welders work in a variety of different industries with many different pieces of equipment.It is a fabrication process used to join materials, usually metals or thermoplastics, together. During welding, the pieces to be joined (the workpieces) are melted at the joining interface and usually a filler material is added to form a pool of molten material (the weld pool) that solidifies to become a strong joint.In contrast, Soldering an