STUD WELDING THROUGH HEAVILY GALVANIZED DECKING

SHEAR CONNECTORS WELDED THROUGH HEAVILY GALVANIZED DECKING WITH PROCEDURES NORMALLY USED FOR BARE METAL SURFACES DEVELOP EXCESSIVE POROSITY, POOR FUSION AND LOSS OF FILLET BECAUSE OF VIOLENT SPATTER. THE ZINC CAN BE DRIVEN OUT OF THE WELD AREA BY PROLONGING THE WELD CYCLE AND VENTING THE ARC SHIELD MORE FREELY. INCREASING THE INNER VOLUME OF THE ARC SHIELD MINIMIZES SPATTER AND PERMITS THE FORMATION OF AN ACCEPTABLE WELD FILLET CONTOUR. AN ARCH SHIELD AND WELDING PROCEDURES HAVE BEEN DEVELOPED TO PRODUCE SATISFACTORY STUD WELDS THROUGH GAGE DECKING WITH A 1.25 OZ. ZINC COATING FOR .75 IN. STUD DIAMETERS. THE ARC SHIELD, STUD BASE COMBINATION WAS SUCCESSFULLY QUALIFIED UNDER AWS CODES D1.0-66 AND D2.0-66. /WJ/

• Authors:
  • Pease, C C
  • Preston, F J
• Publication Date: 1972-4

Media Info

• Pagination: p. 241-4
• Serial:
  • Welding Journal American Welding Soc
  • Volume: 51
  • Issue Number: 4

Subject/Index Terms

• TRT Terms: Electric arc welding; Fasteners; Fillet welds; Fusion; Galvanizing; Porosity; Shear reinforcement; Stud connectors; Welding; Zinc
• Uncontrolled Terms: Fusion welding; Shear connectors
• Old TRIS Terms: Decking; Shielded arc welding
• Subject Areas: Construction; Highways;

Filing Info

• Accession Number: 00215549
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 13 1972 12:00AM