Y. Zhang, A. Male, B. Losch, University of Kentucky, Lexington, KY; L. Kvidahl, Northrop Grumman Ship Systems, Pascagoula, MS; M. Ludwig, General Dynamics Bath Iron Works, Bath, ME; J. Emmerson, Mangatech Limited Partnership, East Granby, CT

Summary: Double-sided arc welding is a newly developed arc process which can eliminate angular distortion and penetrate ½ in. thick plate. It also reduces weld width, heat input, and buckle distortion. Research has made it promising for shipbuilding through proving its suitability for DH-36, improving control algorithm, and simplifying its operation.