On the basis of temperature Fusion welding Solid-state welding Allied welding Fusion welding- When the workpiece is heated beyond its melting temperature during the welding process then it is known as fusion welding. example- arc welding, gas welding, thermit welding Solid-state welding In respect of solid-state weldin…

Solid-state welding In this process, the workpiece is not melted. The material remains in solid state due to the absence of a melting temperature. The heat-affected zone is very small as compared to the fusion process. Similar material can be joined non-conductive material like plastic can be joined.  There are two categories of s…

Type of welding Types of weldings( Source- http://www.minaprem.com/ ) 1. Autogenous welding when no material from an external source is used to fill the gap then it is known as autogenous welding Example- resistance welding, TIG welding,  Electron Beam Welding Advantages- Fusion welding of thin sheets is poss…