Material Thickness and Joint Design The physical properties of the workpiece should heavily influence your choice of current. Welding reactive alloys that may form an oxide layer.
The Clean Shine of AC TIG Welding for Steel
When AC Cleaning Action is Beneficial Removing light rust or mill scale from older steel stock. For thin gauge steel, such as automotive panels or sheet metal, the cleaning action of AC can prevent porosity and ensure a smooth, shiny weld.
The Role of AC Current in Steel Fabrication While DC dominates thick steel applications, AC current plays a specific and vital role in the TIG process. Understanding the distinct behaviors of each setting is crucial for any fabricator or hobbyist looking to master this precise welding process.
Achieving a Clean TIG Steel Weld Appearance with AC Current
Ideal for building up layers or welding in tight spaces. Conversely, AC alternates direction thousands of times per second, creating a cleaning action that removes surface contaminants but offers less concentrated heat.
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