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Manufacturing Industry

Tube welding process joins tubes to tubes, sheet, solids.(WELDING/JOINING)

Advanced Materials & Processes,  May, 2003  

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A method for welding metal tubes to solids, sheet metal, and other tubes has reportedly been developed at Delphi Technologies Inc., Troy, Mich. Called Annular Deformation Resistance Welding (ADRW), the technology enables increased design flexibility while reducing cost and weight. The process involves placing a nugget of weld material at the joint interface, then heating the area by means of electrical resistance.

The nugget melts and flows around the tube, forming leak-tight joints with uniform circumferential weld strength. The process is rapid, and the welds are made by ...

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