WELDING METHOD OF LEAD AND TITANIUM BY BRAZING ROD

摘要

PURPOSE:To perform thoroughly welding by subjecting a lead plate and titanium plate to TIG welding under welding conditions of prescribed current, voltage and welding speed thereby minimizing change of mechanical or chemical properties owing to overheating of the titanium material and forming the joint part having good beads. CONSTITUTION:The welding conditions of 13-85A welding current, 9-12V welding voltage, 70-300mm./min welding speed and entering the region shown in the figure are selected. A lead plate 5 and a titanium plate 6 are TIG welded in a flat position by using a lead brazing bar 7 under said welding conditions. overheating of the titanium material is obviated by such method and therefore the deterioration in mechanical and chemical properties is minimized, by which the joint part having good beads is formed and the thorough weld zone is obtd.