Hitsausvirtalähteen

Hitsausvirtalähde is a Finnish term that translates to welding power source or welding machine. It is the essential electrical component of a welding setup, responsible for converting incoming electrical power into a form suitable for creating an electric arc used in welding.

There are several types of welding power sources, each designed for specific welding processes and applications. Common types include transformer-based machines, which are robust but often heavy, and inverter-based machines, which are lighter, more energy-efficient, and offer greater control over welding parameters.

The primary function of a welding power source is to provide a controlled electrical current and voltage to the welding torch or electrode. The output characteristics, such as amperage and voltage, are crucial for achieving a stable arc and producing strong, quality welds. Different welding processes, like Stick (SMAW), MIG (GMAW), TIG (GTAW), and Flux-Cored (FCAW), require specific types of power source outputs, often categorized as constant current (CC) or constant voltage (CV).

Modern welding power sources often incorporate advanced features such as digital displays, adjustable arc force and hot start settings, and even pulse welding capabilities, which allow for finer control over heat input and improved weld quality, especially on thin materials. Safety features are also paramount, with built-in protection against overloads and short circuits. The choice of a welding power source depends on factors like the type of welding to be performed, the materials being joined, the desired weld quality, and the available power supply.