Do you know the recent development of industrial aluminum profile welding?

The ancient welding technology stayed at the level of casting welding, forging welding, brazing welding and riveting welding for a long time. The heat source used was the furnace. The temperature was low and the energy was not concentrated, so it could not be used for welding large section and long weld workpiece.

At the beginning of the 19th century, Davis in Britain discovered two kinds of high temperature heat sources, arc and oxyacetylene flame, which can partially melt metals. In 1885 ~ 1887, Russia's Benaldos invented carbon arc welding pliers; In 1900, thermite welding was introduced. At the beginning of the 20th century, carbon arc welding and gas welding were applied, and thin flux-coated electrode arc welding also appeared. The arc was relatively stable, the welding pool was protected by slag, and the welding quality was improved, making manual arc welding enter the practical stage. Arc welding has become an important welding method since the 1920s. It also became the beginning of the development of modern welding technology. During this period, the United States Noble uses arc voltage to control the electrode speed, made of automatic arc welding machine, thus becoming the beginning of welding mechanization, automation. In 1930, Robinov in the United States invented the use of welding wire and flux submerged arc welding, welding mechanization was further developed. In 1940s, tungsten and fusion inert gas shielded welding were developed to meet the needs of aluminum, magnesium alloy and alloy steel welding.

In 1951, the Barton Welding Institute of the Soviet Union created electroslag welding, as a welding method of large thickness workpiece. In 1953, Llyobavsky and others in the Soviet Union invented carbon dioxide gas shielded welding, which promoted the application and development of gas shielded arc welding, such as mixed gas shielded welding, flux-cored wire gas slag combined shielded welding and self-shielded arc welding. In 1957, American Gage invented plasma arc welding; Electron beam welding, invented in Germany and France in 1940s, was also practical and further developed in 1950s. In the 1960s, the emergence of laser welding plasma, electron beam and laser welding methods marked a new development of high energy density fusion welding, which greatly improved the weldability of materials, making many materials and structures that are difficult to be welded by other methods.

Other welding technology and in 1887, the United States Thompson invented resistance welding, and used for spot welding and seam welding sheet; Stitch welding is an early semi-mechanized welding method in pressure welding. With the process of seam welding, the workpiece is pushed forward by two rollers. Flash-butt welding of bars and chains began in the 1920s. At this point resistance welding into the practical stage. In 1956, Jones invented ultrasonic welding in the United States; Chudtikov invented friction welding in the Soviet Union; In 1959, the Stanford Research Institute of the United States successfully studied explosive welding; In the late 1950s, the Soviet Union made vacuum diffusion welding equipment.

Keyword: Industrial aluminum profile

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