Description
MIG (Metal Inert Gas) welding, also known as Gas Metal Arc Welding (GMAW), is a popular and versatile welding process. While the core principles are the same, there are a few basic types of MIG welders based on their power source and capabilities. Here’s a breakdown of the most common ones:
- Conventional (Transformer-Based) MIG Welders
These are the traditional MIG welders. They use a heavy transformer to step down the incoming AC voltage to the lower DC voltage required for welding. They also rectify the AC to DC. - Inverter MIG Welders
Inverter welders use solid-state electronics to convert the incoming AC power to high-frequency AC, then rectify it to DC, and finally invert it back to the desired welding voltage and amperage. This process is much more efficient and allows for smaller, lighter machines. - Multi-Process Welders
These machines are designed to perform multiple welding processes, often including MIG (GMAW), Flux-Cored Arc Welding (FCAW), Stick (SMAW), and TIG (GTAW).
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