Bearing materials obtained by diffusion bonding of aluminium and aluminium bronze chips

An original concept of production a bearing composite by the mixing and bonding of aluminium and aluminium bronze chips through press molding, extrusion and heat treatment has been developed. Diffusion bonding process of aluminium and aluminium bronze chips leads to creation of phases typical for Cu-Al. alloys. The phases are created in small amount during extrusion of cold compacted mixture of aluminium and aluminium bronze chips and mainly during heat treatment applied after extrusion. This way, without participation of metallurgical processes good bearing materials can be manufactured