Welding Process:There are many definition of a welding process. But the most comprehensive definition is below.
Welding is defined as a "a localized coalescence of metals, wherein coalescence is obtained by heating to suitable temperature, with of without the application of pressure and with or without the use of filler metal. The filler metal has a melting point approximately the same as the base metals."The welding process is used to metallurgical join together two metal pieces, to produce essentially a single piece of metal. The process results in what is known as a 'permanent joint.' A good welded joint is as strong as the parent metal. The product is known as 'Weldment.'