IMPROVEMENTS IN OR RELATING TO FUSION WELDING METHODS

摘要

PCT No. PCT/GB83/00001 Sec. 371 Date Aug. 23, 1983 Sec. 102(e) Date Aug. 23, 1983 PCT Filed Jan. 7, 1983 PCT Pub. No. WO83/02415 PCT Pub. Date Jul. 21, 1983.A method for fusion welding together two portions of a parent metal comprised by an aluminum alloy includes the steps of surface abrading the two portions in at least the region of their mutual interface and intended weld zones, applying to each abraded surface a hot-sprayed coating comprised by a metal having a lower electrochemical potential than the parent metal, abutting the two coated portions at the mutual interface, and fusing them together by fusion welding.