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Senior Airman Tony Guinn, 2nd Maintenance Squadron aircraft metals technology journeyman, tungsten inert gas, or TIG, welds an aluminum tube mounted on a 45 degree fixture on Barksdale Air Force Base, La., March. 25, 2014. These tubes are part of a five-year welder’s certification. The certification requires a steady hand to ensure proper weld penetration through the walls of the aluminum. (U.S. Air Force photo/Staff Sgt. Jason McCasland)


Let the sparks fly: 2nd MXS welder certification

Senior Airman Tony Guinn, 2nd Maintenance Squadron aircraft metals technology journeyman, tungsten inert gas, or TIG, welds an aluminum tube mounted on a 45 degree fixture on Barksdale Air Force Base, La., March. 25, 2014. These tubes are part of a five-year welder’s certification. The certification requires a steady hand to ensure proper weld penetration through the walls of the aluminum. (U.S. Air Force photo/Staff Sgt. Jason McCasland)

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