Welding Inspector

Welding History

Welding is a process or an operation for joining two or more parts, usually metals, by means of heat or pressure or both, in such a way that there is continuity in the nature of the metal between the parts. So it can involve filler material or not.

For joining the material, it will need energy source. There are many type of energy sources that can be use for welding such as gas flame, electric arc, laser, electron beam and friction.

Welding process has been developed for many different of atmosphere such as open air, underwater and space. All atmosphere where welding to be done will cause hazard such as burns, electric shock, eyes damage, fume, ultraviolet.

In the end of 19^th century, arc welding and oxyfuel welding were the first processes developed, and resistance welding following later.

Welding technology developed quickly during world war I and world war II since people need reliable and inexpensive joining methods for war purpose. Shielded metal arc welding (SMAW) was developed during this period, that now become most popular method.

Followed soon, semi automatic and automatic processes such as Gas Metal Arc Welding, Submerged Arc Welding, Flux Cored Arc Welding and Electroslag Welding were developed and also become famous. Development continued with the invention of laser beam welding and electron beam welding. And today, robot welding is becoming popular in the industrial welding for automatic process.