Abstract: The present invention relates to a method of producing an aluminum impact extrusion by preparing a slug of an aluminum based alloy made of aluminum and at least one element selected from cobalt and nickel, whereas the amounts of the cobalt and nickel are each present in amounts of 3% by weight or less and wherein the total amount of cobalt and nickel is 0.15% by weight or more; impact extruding the slug by using an impact extrusion press, and then annealing the extruded product. The present invention also involves an aluminum base alloy consisting of the ingredients mentioned above useful for impact extrusion and an aluminum collapsible tube prepared by impact extruding a slug stud of an aluminum base alloy of the type described above.

Abstract: A method and apparatus for continuously producing clad metal plate employing a continuous casting apparatus. Sheet metal cladding is fed onto one or both faces of the hot solidified continuously cast strip being withdrawn from the casting means and the assembly is then passed to a hot roll bonding system for cladding. A method of producing clad aluminum or aluminum alloy according to the above process is further disclosed.