Welding is a fabrication process whereby two or more parts are fused together by means of heat, pressure or both, forming a join as the parts cool.
The Process of welding uses filler material. The filler material is the pool of molten material that aids in the formation of a strong link between the base metal. The process of shielding during the welding process protects both the base and filler components from being oxidised.
From gas flame to ultrasound, there are many energies used in welding like electron beams, electric arc, LASER, and friction. Now let us understand various types of welding.
Manual metal arc welding (MMA or MMAW), also known as shielded metal arc welding(SWAW), flux shielded arc welding or stick welding, is a process where the arc is struck between an electrode flux coated metal rod and the work piece. Both the rod and the surface of the work piece melt to create a weld.
Metal Inter Gas(MIG) welding is an arc welding process that uses a continuous solid wire electrode that is heated and fed into the weld pool from a welding gun. The two base materials are melted together forming a join. The gun feeds a shielding gas alongside the electrode helping protect the weld pool from airborne contaminants.
Tungsten Inert Gas (TIG) welding, also known as Gas Tungsten Arc Welding(GTAW) is an arc welding process that produces the weld with a non-consumable tungsten electrode. Using an inert gas shield instead of a slag to protect the weld pool, the process is a highly attractive replacement for gas and manual metal arc welding.
