Joining Aluminum Open Cell Sponge by Friction Stir Welding

Abstract

Metallic sponges delivered from aluminum 6XXX series are a standout among the most as of late created ultra-lightweight cellular metals. Metallic sponge features exceptionally high-energy ingestion limits with low density and are consequently utilized for boundless applications in the production of ultra-lightweight cellular parts. The manufacture of cellular component parts, for example, high-temperature air or liquid filters and implants, is potential requirement zones relying upon the cell structure size and type of the metal sponge. Metal sponge of closed cell type is ordinarily appropriate for structural uses though open cell sponge; in general, it will be favored for utilitarian applications. Advancement of satisfactory joining innovations for these materials is a basic advance for their far-reaching modern use. The present paper portrays a strong solid-state welding technique that is fit for giving sound joints between aluminum 6XXX macro-porous sponge arrangements. The joining is accomplished by friction stir welding technique abbreviated as FSW through heat generation, softening of material and plastic deformation following the going of non-consumable rotating high-speed steel [HSS] cylindrical tool through the gap between the two solid edges of the sponge to be joined. Having optimized the welding conditions and without utilizing filler metal strong edges were created. The subsequent welds had comparable mechanical properties to that of solid FSW-welded aluminum 6XXX series.