Small Diameter Gas Tungsten Arc Welding
Gas tungsten arc welding (GTAW), commonly known as tungsten inert gas (TIG) welding, is a welding process that uses a non-consumable tungsten electrode to produce the weld. A tungsten electrode is placed within the weld area, and an arc is created by touching the electrode to the metal being welded and then moving it a short distance away. The arc creates extreme temperatures, reaching between 6,000 to 16,000 degrees Fahrenheit, making it ideal for welding various metals, such as aluminum and stainless steel.
Small diameter gas tungsten arc welding (SDGTAW) is a specialized form of GTAW that is used to weld components with very small diameters (typically less than 3/32). This form of welding requires specialized equipment and expert operator skills since the weld must be accurately and precisely manipulated into small, hard-to-reach areas.
SDGTAW has a variety of industrial applications. For example, the process is ideal for welding components used in medical devices and other precision parts that require close tolerances and smooth, clean welds. Additionally, the process can be used to repair components such as turbine blades and in the construction of turbines and compressors, giving them greater durability and reliability.
The SDGTAW equipment features a special gun that is designed to minimize spatter and increase operator control in tight work areas. Additionally, the gun tip is designed to provide greater stability while welding, helping to create a smooth, consistent welding profile. With the appropriate filler material, the process is capable of producing strong, reliable welds in difficult-to-access areas.
The process also requires the use of a precisely manipulated shielding gas to prevent the weld area from contamination. Common shielding gases include argon and helium, and the gas choice depends upon the type of material that is being welded. The gas serves to protect the weld from the surrounding atmosphere, helping to create a strong, contamination-free weld.
SDGTAW is an advanced welding process that has many advantages, including greater operator control and precision, low spatter, and smoother welds. The process does require specialized equipment and expert operator skills, however, making it best for experienced welders and intricate projects. When used correctly, the process can help produce strong, reliable, and consistent welds that can withstand extreme temperatures and environments.
