Abstract: Flashing for a pipe is produced by joining a lead sheet having a hole in it for passing over the pipe, and a lead cylinder which is to surround the pipe and be bent into the top thereof. The joint is formed by producing mating flares on the lead sheet and cylinder and welding the two together. The weld is performed in the presence of an inert gas by drawing an arc between an electrode and the joint. The portion of the joint being welded is brought to a horizontal orientation by having the flares at a 45 degree angle and supporting the two parts on a rotating table inclined at 45 degrees.

Abstract: Two lead members are juxtaposed on an electrically conductive surface forming a first electrode. A direct current electric arc is struck between a second electrode and at least one of the lead members. Inert gas is directed at the area being welded and the arc and work are moved relative to each other. The lead members are typically sheet members and the welds may be of the general types of welds formed with other metals. No metal is added in the welding process.