Although welding has been used since ancient times, it was initially used as an art, but currently, it is in use as advanced and well-organized science and has many branches today.
It is using everywhere today, whether it is to make a small device or a large aircraft.
Became an Art
Mankind had knowledge of metals as early as 4000 BC.
In Egypt, there is evidence dating back to early metal copper, bronze was used between 3000 and 2000 BC.
Small gold circular boxes, made during the Bronze Age using pressure welding.
These examples of welding art were boxes and jewelry made by humans first time.
became a necessity
With the discovery of mercury in 1500 BC, the smelting of iron became common by 1200. The Egyptians dated 1330 BC. Used soldering and blowpipes for soldering metal. The use of furnaces for the production of swords and spears began in 1000 BC.
Ironwork 1000 BC Started in, the use of furnaces for the production of swords and spears.
The gold boxes found in Ireland (coined by LAP JOINT) were wonderful examples of welding Art.
The Egyptians made iron implements in 900 to 850 BC. In this era, iron’s popularity gradually increased due to the familiarity and usefulness of bronze and copper.
The Babylonians unearthed iron weapons in around 900 BC.
During the Sui dynasty, China left 589 BC. Developed the ability to convert iron into steel. Japan manufactured steel for the production of samurai swords through the welding and forging process. Production of steel-made samurai swords in Japan began in the same period through the welding and forging process, these facts reflect the welding requirements of that era.
About welding in India
The iron pillar of Delhi which is about 23 feet 8 inches (7.2 meters) high with 16 inches diameter and weighs 6 tons is used with iron built.
The blacksmith forge-welded the structure, constructed by King Chandra Gupta.
Other structures of similar construction were found in England, Scandinavia, and Rome, whose iron source was a meteorite.
A manuscript written by the monk Theophilus from 1000 to 1099 describes mixing flux for silver brazing.
It described the use of sodium chloride and potassium carpets.
Zinc was discovered in 1375 A.D.
World War 1 caused a major surge in the use of welding processes, with the various military powers attempting to determine which of the several new welding processes would be best. It began in use in the Middle Ages (5th to 15th centuries).
Became as a Technique
Over time, the discovery of metals as well as welding techniques continued to develop. By the middle of the 18th century and the Industrial Revolution had begun. In 1800, Alessandro Volta proved that it can also produce electricity through chemical reactions. He built the first battery in the path of steady electric current.
The discovery of the Humphrey Davy in 1802, created a revolution when they created an electric current flowing through a powerful belt in a thin strip of platinum.
But this experiment was still theoretical Until 1804.
The time from 1877 to 1880 was important for arc welding in this cycle of development when electric dynamo and generators developed. Welding of metals through the carbon arc process as possible from 1885 to 1887.
Up to 1902, many organizations such as ASTM, AWS, TWI, established, introduced welding as a science to the world.
Today our industry using several welding, brazing, and soldering methods
Here are classified some most used processes, based on their work
- Arc Process
- Gas Process
- Resistance Process
- Solid-State Process
- Thermo-Chemical Process
- Radiant Energy Process