Guangzhou EACO electric equipments Blog

  What metals can I weld with TIG? "DC" (direct current) TIG welders can be used to weld a variety of "ferrous" metals, including mild and stainless steels, as well as copper and chromium-molybdenum alloys. (but not aluminum). Many, but not all, inverter rod/MMA welders have DC TIG capability. An important feature for effective TIG welding is elevated arc ignition. To weld aluminum, you need a machine with "AC" (alternating current) capability. These machines typically have both AC and DC capability in one machine ("AC/DC") - which allows them to weld most metals, including: aluminum, steel, stainless steel, copper, chromium-molybdenum, and more. Typical AC/DC machines that are dedicated TIG welders (sometimes with stick/MMA capability as an add-on).    What gas should I use for TIG welding? Most common TIG welding applications require pure argon (100% Ar). Some critical applications may require specialty gases.   What is the correct polarity for...

  What is TIG welding? The acronym TIG stands for Tungsten I nert G as . Tungsten refers to the type of conductor (tungsten electrode) used to transfer the welding current to the work and create the arc. Inert gas refers to the fact that the process relies on an inert gas (such as argon) to protect the weld and prevent oxidation of the weld. TIG is also known as gas tungsten arc welding (GTAW). Simply put, TIG welding is probably most similar to oxy-fuel welding. However, instead of a flame, it uses an arc to melt the workpiece and filler metal, rather than a preheated flame, and it uses an inert gas to prevent weld oxidation. As with oxy-flame welding, the filler metal is manually fed into the weld as needed. Since the current is not conducted through the filler metal to the workpiece (as in MIG and MMA welding), the arc is more controllable.   What are the advantages of TIG welding? Very low amperage can be achieved, making the process ideal for welding thin materials. In ad...