Can aluminum be welded?

Yes, aluminum can be welded. Welding aluminum is a common practice in various industries due to its lightweight and corrosion-resistant properties. Techniques such as Gas Metal Arc Welding (GMAW), Gas Tungsten Arc Welding (GTAW), and Shielded Metal Arc Welding (SMAW) are used. However, aluminum welding requires specific precautions, such as using a clean, dry surface and a proper shielding gas to prevent oxidation, as aluminum readily reacts with oxygen.