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Flash welder
Page 132
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An electric flash butt welding process developed by Reynolds Tube, a steel-tube division of Tube Investments, has enabled Metalastik heavy-duty control links to be made by the Polymer engineering division of Dunlop in a wide variety of lengths and
sizes. Dunlop produces links -Fr the makers of heavy-duty rot and rail vehicles, who use thei as radius arms, Panhard rods an traction links in suspensic systems. The links consist of tvt forged-steel eyes (that are lat, fitted with rubber bearing welded to each end of a suitab length of Reynolds' seamle: steel tube. It is claimed that ti process provides a high-ouali product at a relatively low cost.
Reynolds originally develop( flash butt welding for tI production of high-streng aero-engine components. TI parent metals are forged welde no filler material being require Heat is produced by tl resistance to the flow of electric current, as in ordinz electric resistance welding, a a force of several tons is th used to weld the tv components together.
An arc is struck brie• between the two surfaces befc the parts are welded al allowed to burn for a carefu controlled period. The a prepares the two faces to welded by removing impuriti and ensuring that the h surfaces match perfectly.
Made by: Reynolds Tube Co L. Tyseley, Birmingham.