Constellium Neuf-Brisach

Sandvik Intellectual Property Ab

Hyperion Materials & Technologies Ab

Laurent Laszczyk

Hervé Stoppiglia

Victor Rimbau-Gilabert

Christian Delclos

David P Lieb

The invention relates to a manufacturing process of aluminum alloy beverage cans by &#xab;Drawing-Ironing&#xbb;, characterized in that a friction higher between the bodymaker punch and the aluminum sheet than between the ironing die and said aluminum sheet is produced by at least one of the following specificities: It also relates to a beverage can manufactured by such a process, and characterized in that its reflectance measured at 60&#xb0; is higher than 73% just after the last ironing step.

Optimized drawing and wall ironing process of aluminum containers

A method of manufacturing a textured-smooth hybrid metal closure cap, and a closing caps produced by the method. The method includes a) the supply of a strip or sheet, made of aluminum alloy known as a 'textured' strip or sheet, typically coated on at least one of its faces by a stampable lacquer, b) a first operation for cutting discs, called blanks, c) a step for stamping, in one or more passes, of said blank metal, typically using a stamping lubricant, so as to form a stamped blank, comprising a head and a skirt, typically axially symmetric in the axial direction, d) a step for degreasing said stamped blank, typically intended to eliminate the remaining lubricant, to form a degreased blank that can be lacquered, and e) an optional step of protective lacquering and decoration. After the stamping step, and before the lacquering step, at least one drawing step consisting in passing the stamped blank through drawing rings in order to stretch and thin the metal.

Method of manufacturing textured-smooth hybrid metal closure caps

Growing community of inventors

Rielasingen-Worblingen, Germany

Laurent Laszczyk