TWISTED WIRE NARROW GAP WELDING

Puget Sound Naval Shipyard is evaluating and developing the twisted wire narrow gap joints and reduced bevel weld joints for the shipbuilding industry. Test and evaluation work is being accomplished with twisted solid wire and twisted flux cored arc weld on carbon steel, low alloy steels (ASTM-302B) and quenched and temper steels (HY-80). Weld joint design tolerances, welding parameters tracking systems and weld joint irregularities have been evaluated with both twisted FCAW and solid welding electrodes. All test welds have been accomplished on two and three inch thick base metals. The following elements of the electrode quality were found to be critical for depositing sound metal: uniformity of the twist; tightness of the twist; smoothness of the wire; amounts of residual stress; prevention of looping; and the amount of helix.

• Supplemental Notes:
  • 1985 Ship Production Symposium, Long Beach, California, 11-13 Sept. 1985, Vol. II p. 557 [33 pp., 2 ref., 3 tab., 23 fig., 3 phot.]
• Authors:
  • Gatto, F B
• Publication Date: 1985

Language

• English

Subject/Index Terms

• Subject Areas: Marine Transportation;

Filing Info

• Accession Number: 00689430
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM