dmitrij81l4
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Gas metal arc welding (GMAW) is a welding process that uses a continuous wire electrode and shielding gas to create heat that melts the metal and form a weld pool. The shielding gas protects the weld pool from harmful atmospheric gases. GMAW is similar to semi-automatic welding (MIG), but can use different gases and metal transfer methods. GMAW was invented in 1948 and has since become a common and efficient welding method used in various industries. GMAW can be used to join different metal materials and has applications in shipbuilding, automotive, mechanical engineering, aerospace, and more. There are different types of GMAW welding, such as MIG and MAG, which use different gases and have different characteristics. The main methods of metal transfer in GMAW are drip, short-circuit, spray, and pulsed spray. The GMAW welding process involves delivering a consumable wire electrode, shielding gas, and electric current to the weld seam, creating an electric arc discharge that melts the metal and forms a weld pool. GMAW welding can be semi-automatic or automatic, and various parameters such as power, wire feed speed, shielding gas type, and metal transfer method can be adjusted to control the weld quality. GMAW welding has advantages such as ease of use, high speed, versatility, and clean weld seams, but also has limitations such as limited ability to weld in certain positions and sensitivity to wind and air pollution. Overall, GMAW is a widely used and efficient welding method for creating strong joints in various industries. https://zvarka.info/en/gmaw-welding-type/
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