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A modern underwater welding. Khrenov dedicated his entire career to the development of welding techniques and equipment. He invented methods of electric welding and cutting metals under water, designed power sources for arc and spot welding, ceramic fluxes, electrode coatings, methods of cold pressure welding, diffusion welding, plasma cutting and many others. [3]
The first machine was built from recycled scrap steel and coil windings in his basement. [3] In 1935, Miller Electric Mfg. Co. was incorporated. Al Mulder, Miller's sole engineer, invented the world's first high frequency-stabilized AC industrial welder, making AC welding practical for use in factories and construction. [citation needed]
The ancient Greek historian Herodotus states in The Histories of the 5th century BC that Glaucus of Chios "was the man who single-handedly invented iron welding". [6] Forge welding was used in the construction of the Iron pillar of Delhi, erected in Delhi, India about 310 AD and weighing 5.4 metric tons. [7]
Arc welding power supplies can deliver either direct (DC) or alternating (AC) current to the work, while consumable or non-consumable electrodes are used. The welding area is usually protected by some type of shielding gas (e.g. an inert gas), vapor, or slag. Arc welding processes may be manual, semi-automatic, or fully automated.
Nikolay Benardos was born on July 8, 1842, in Benardosivka, Kherson Governorate, Russian Empire. During the 1860s and 1870s he investigated the electric arc, and he worked on this in Moscow, St. Petersburg and Kineshma. [1]
Charles L. Coffin. Charles L. Coffin (1844-1926) [1] of Detroit was awarded U.S. patent 428,459 for an arc welding process using a metal electrode.This was the first time that metal melted from the electrode carried across the arc to deposit filler metal in the joint to make a weld. [2]
A welder is a person or equipment that fuses materials together.The term welder refers to the operator, the machine is referred to as the welding power supply.The materials to be joined can be metals (such as steel, aluminum, brass, stainless steel etc.) or varieties of plastic or polymer.
Shielded metal arc welding (SMAW), also known as manual metal arc welding (MMA or MMAW), flux shielded arc welding [1] or informally as stick welding, is a manual arc welding process that uses a consumable electrode covered with a flux to lay the weld.