Joining two pieces of metal together using filler material and heat. At Maine Source our welders specialize in several types of welding. The most popular and cost-effective is Gas Metal Arc Welding (GMAW) or as most people know it as Mig Welding. We Mig weld Steel & Stainless Steel sheet metal, structural & Plates. We also offer Gas Tungsten Arc Welding (GTAW) or as most people know it as Tig Welding. This process is used more on high precision steel & stainless steel parts, aluminum or other specialized alloys. Our welders utilize good quality welders, fillers, gases, welding tables, jig tables, and rotary positioners to help them meet or exceed customers needs.