Submerged Arc Welding Machine
Submerged arc welding machine is a welding machine that is employed to join two pieces of metal. This welding machine uses an electrical arc between a consumable electrode and the workpiece. This machine is also referred to as “Sub Arc” since it uses a submerged arc welding operation. The submerged arc welding machine is the most versatile arc welding device on the market today and is employed for various welding processes, ranging from simple butt welding, to heavy-duty groove welding.
The most common applications of submerged arc welding machines include structural steel, tube and pipe, railway, and shipbuilding. The main advantages of a submerged arc welding machine include powerful welding capacity, greater throughput, and optimum performance. The process of submerged arc welding is easy to understand, but executing it with precision requires experience and skill. It is, therefore, important to follow the manufacturer’s instructions and safety measures while using the machine to produce high-strength welds.
Submerged arc welding uses a coil that is wound around a drum and a flux layer between the two sheet surfaces that helps to promote strong current penetration during the welding process, and produces a high-strength joint. The machine’s arc is moved relative to the workpiece and the arc produces a molten pool of molten material that helps create the fused joint. The molten material is then leverage to form a bead.
The Submerged Arc Welding (SAW) process takes advantage of the arc’s heat to vaporize the flux and convert it into a protective gas. This layer of gas shields the weld from the atmosphere and prevents contaminants such as oxygen and nitrogen from entering the weld pool. This feature ensures that the weld has a good surface finish as well as a greater strength joint.
In addition to the aforementioned benefits, the Submerged Arc Welding machine is also cost-effective. This is because the machine requires minimal setup time and consume less welding supplies such as electrodes and shielding gases, compared to other welding processes. Furthermore, the machine has a wide variety of applications and it can be used to join different materials such as stainless steel and aluminum.
Safety is also an important factor to consider when using a Submerged Arc Welding machine. The use of protective clothing and foot wear is mandatory to protect operators from arc burns. The work area also should be well ventilated as the welding process produces hazardous fumes and gases.
In conclusion, the submerged arc welding machine is a reliable, cost effective, and efficient welding machine for joining two pieces of metal. It offers many advantages such as greater welding strength and improved surface finish. However, it is also important to follow the manufacturers instructions and safety tips while operating the machine.
