Welding Wisdom for Professionals and Beginners Alike.

The best shielding gas for MIG welding aluminum is 100% argon. Use flow rates of 20 to 30 CFH (cubic feet per hour) for optimal results. This gas stabilizes the…

Pure argon is better for welding cast aluminum because it costs less and has a higher density than air. Helium provides higher heat input and faster welding but is more…

Argon-helium mixtures work well for welding aluminum. Common combinations include 75% argon-25% helium, which creates strong welds, and 25% argon-75% helium, which enhances arc stability. Other mixtures, like 50%-50% and…

Hexavalent chromium in aluminum welding alloys poses significant health risks to welders. Exposure to fumes containing this substance can increase cancer risk. Welders must wear protective equipment and follow safety…

To effectively TIG weld aluminum, follow the “hot and fast” rule. Use enough amperage to quickly establish the weld puddle. Start welding right away and keep a steady travel speed….

Helium plays a key role in welding aluminum. It improves arc stability and enhances mechanical properties of the weld. Using up to 10% helium ensures optimal penetration and a clean…

Setting the frequency for aluminum welding between 120 Hz and 200 Hz is optimal. A frequency of 400 Hz improves arc stability, providing deeper penetration and a focused arc. This…

Weld distortion in aluminum happens due to heat deflection during welding. Localized expansion and contraction occur as the material heats and cools. To minimize this, control heat input and cooling…

Helium improves DC aluminum heliarc welding by enhancing heat transfer. It requires higher arc voltage, resulting in less stable arcs compared to argon. Use helium with 40XX filler for better…