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METAL-CORED ELECTRODE IMPROVES WELDING TRAVEL SPEED This bridge fabricator relied on a solid electrode in its submerged arc welding process until a composite metal-cored electrode improved its welding travel speed by 40 percent a sub-arc bridge fabrication application. Automated submerged arc welding is specified in bridge fabrication for its high deposition rates, consistency and quality.
Fought & Company's 340,000 sq ft facility in Tigard, OR is the birthplace of many recognizable structural steel and bridge projects in the Pacific Northwest. Founded in 1949, Fought is responsible for portions of the retractable roof on Safeco Field in Seattle, a 120,000 sq ft steel and glass canopy at Portland International Airport, and over 12,000 tons of steel bridges on I-15 in Salt Lake City, UT.
Fought relies on automatic submerged arc welding (or sub arc) to fabricate 90 percent of each bridge that comes through its facility. Sub arc, like all welding processes, joins metals by fusion. Sub arc differs, however, because its shielding is provided by a granular flux material. |
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