Inverter Welding Machines

Updated: Jan 16

Welding machines or 'welders' as they are popularly known are electrical devices that generate heat with the help of electric current that melts metal parts, so that these parts can be joined together. Traditionally, welding machines work by creating an electric arc between a metal stick or electrode and a base material to melt the metals at the point of contact.


Inverter welders are by far a better option for users everywhere in Nigeria.


How Inverter Welders Work

An inverter welder is a relatively new and innovative type of welder and by far more sophisticated and generally more efficient.


Like all inverter-based systems, inverter welding machines work as 'rectifiers' and then as inverters. First, they rectify the AC power from the mains to DC. Second, they switch or invert the DC power through a stepdown transformer to produce the desired welding voltage or current.


The most important feature in inverter welders is a high-power semiconductors known as the insulated gate bipolar transistor (IGBT). These transistors in an inverter based machine are controlled by a microcontrollers so that the electrical characteristics of the welding power can be changed by software in real time, even on a cycle by cycle basis, rather than slowly over hundreds if not thousands of cycles. This gives inverter welders a high switching frequency, up to 10kHz or higher.



General Features And Advantages Over Conventional Welding Machines

The most important feature of inverter welders is that they can are controlled only through software. The controller software implements features that cannot be installed in transformer-based welders, for instance, pulsing the welding current, providing variable ratios and current densities through a welding cycle, enabling swept or stepped variable frequencies, and