7th EMS receives augmented reality welding system, improves real-world welding Airman 1st Class Taylor Dow, 7th Equipment Maintenance Squadron metals technology apprentice, uses the augmented reality welding system to train on welding a groove well at Dyess Air Force Base, Texas, Aug. 5, 2019. The augmented reality system is split into three training operations for welding: metal inert gas, tungsten inert gas and arc welding. (U.S. Air Force photo by Staff Sgt. David Owsianka) SHARE IMAGE: Download Image: Small (491.52 KB)| Medium (1689.6 KB)| Full Size (3.65 MB) Photo By: Staff Sgt. David Owsianka VIRIN: 190805-F-CB366-1007.JPG Photo Gallery