Welding power sources can be classified based on the type of welding process they support. AC (alternating current) power sources are commonly used for applications such as stick welding and TIG (tungsten inert gas) welding for materials like aluminum. DC (direct current) power sources are versatile and often used for MIG (metal inert gas) welding and stick welding of materials such as steel.
Multi-process power sources are designed to handle various welding processes, including MIG, TIG and stick welding, making them adaptable to different applications.
Types of power sources suitable for arc welding include transformer machines, which use a core to step down the voltage and provide a constant current. Rectifier-based power sources convert alternating current to direct current and are often used in applications requiring a stable and precise welding arc.
Inverter-based power sources are modern devices that use electronic circuits to convert energy and are known for their efficiency and portability. They offer a wide range of settings and are suitable for different welding processes.
Battery-powered welding machines are an example of a power source not connected to the mains. These machines use a battery to provide power, making them portable and suitable for remote locations where access to mains power is limited.
They are typically used for light-duty applications and in situations where mobility is essential.
The “S” on a welding power source usually indicates a specialized feature or capability. For example, in some contexts it may indicate that the power source is designed for a specific type of welding or application, such as stick welding or specialized processes. It can also refer to a model designation or series within a brand’s product line.