Читать книгу Welding Metallurgy - Sindo Kou - Страница 22

The main advantage of the OAW process is that the equipment is simple, portable, and inexpensive. Therefore, it is convenient for maintenance and repair applications. However, due to its limited power density, the welding speed is very low and the total heat input per unit length of the weld is rather high, resulting in large heat‐affected zones (HAZs) and severe distortion. The OAW process is not recommended for welding reactive metals such as titanium and zirconium because of reactions with CO and H₂.