We use different types of welding depending upon your project. For example, gas metal arc welding (GMAW/MIG) is the most common and is often used for welding stainless steel, copper, nickel, carbon steel, and aluminum. Gas tungsten arc welding (GTAW/TIG) is a more precise process that produces high-quality welds with a neat appearance that also works well on many different types of materials. Shielded metal arc welding (SMAW) also known as stick welding, is a process commonly used for welding thick materials, such as structural steel and pipelines.