WELDING METHOD FOR CONNECTING AN ALUMINIUM PIPE FLANGE TO A PIPE MADE OF ALUMINIUM

摘要

PURPOSE: A method for welding an aluminum pipe flange to an aluminum pipe is provided to enhance welding quality that does not need a post-process like a flame straightening process. CONSTITUTION: A method for welding an aluminum pipe flange to an aluminum pipe is as follows. A weld seam is formed at only one welding spot by welding joints using a plasma burner. The welding joints have different cross-sectional shapes according to the thickness of a pipe wall between a pipe and a pipe flange(2). The plasma burner is guided around the pipe or the pipe flange by consumable electrodes. The thickness of the pipe wall is about 11mm.