Читать книгу Welding Metallurgy - Sindo Kou - Страница 38

Like GTAW, GMAW can be very clean when using an inert shielding gas. The main advantage of GMAW over GTAW is the much higher deposition rate, which allows thicker workpieces to be welded at higher welding speeds. The dual‐torch and twin‐wire processes further increase the deposition rate of GMAW [12]. The skill to maintain a very short and yet stable arc as in GTAW is not required. However, GMAW guns can be bulky and difficult to reach small areas or corners.