1920

Automatic welding was first introduced in 1920. Invented by P.O. Nobel, automatic welding integrated the use of arc voltage and bare electrode wires. It was used for repairing and molding metals. Several types of electrodes were also developed during this decade.

1930

The New York Navy Yard developed stud welding. Stud welding was increasingly used for the construction industry and also for shipbuilding. It was during this time that the National Tube Company developed a welding process called smothered arc welding

1940

A new type of welding for seamlessly welding aluminum and magnesium was developed in 1941 by Meredith. This patented process came to be known as heliarc welding. The gas shielded metal arc welding or GTAW was another significant milestone in the history of welding which was developed in Battelle Memorial Institute in 1948.

1960

There were several advancements in the welding industry during the 1960’s. Dualshield welding, Innershield, and Electroslag welding were some of the important welding developments of the decade. It was used for metal spraying. The French also developed electron beam welding, which is still used by the aircraft manufacturing industries of the United States.

1990

Although there were lot of developments in 1940’s and 1960’s in GMAW, the mig wire welding process gained more popularity from 1990. Gas metal arc welding (GMAW), sometimes referred to by its subtypes metal inert gas (MIG) welding or metal active gas (MAG) welding, is a welding process in which an electric arc forms between a consumable wire electrode and the work piecemetal(s), which heats the workpiece metal(s), causing them to melt and join.

2000

In the early 2000s, inverter welding machines were becoming popular because of their versatility and ability to control the arc. Initially the era of inverter welding machines started in 1980s with the electronics explosion that coincided with personal computers. As the electronics and software industry grew, engineers soon realized that software-controlled inverters could be used to weld; this opened up a new world of possibilities. The growing pains of inverters happened around the 1990s and many early inverter welding machines were plagued with reliability problems, which was later rectified.

2002

Flux-cored arc welding (FCAW or FCA) is a semiautomatic or automatic arc welding process. FCAW requires a continuously-fed consumable tubular electrode containing a flux and a constant-voltage or, less commonly, a constantcurrent welding power supply. An externally supplied shielding gas is sometimes used, but often the flux itself is relied upon to generate the necessary protection from the atmosphere, producing both gaseous protection and liquid slag protecting the weld. The process is widely used in construction because of its high welding speed and portability. Although developed in 1950 it gained more popularity in 2002.

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