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During the 1920s, significant advances were made in welding technology, including the introduction of automatic welding in 1920, in which electrode wire was fed continuously. Shielding gas became a subject receiving much attention, as scientists attempted to protect welds from the effects of oxygen and nitrogen in the atmosphere.
The EWF training guidelines cover all professional levels in welding technology and related areas, such as thermal spraying, adhesive bonding, plastics welding and underwater welding, leading to recognised qualifications in 30 European countries and also at international level.
This is a list of welding processes, separated into their respective categories. The associated N reference numbers (second column) are specified in ISO 4063 (in the European Union published as EN ISO 4063 ). [ 1 ]
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.
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.
Women Who Weld is a nonprofit organization based in Detroit, Michigan.Women Who Weld teaches women how to weld and find employment in the welding industry through intensive and introductory welding training programs, including Week-Long Intensive Welding Training Classes and Single-Day Introductory Workshops.
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