B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
B31B50/142—Cutting, e.g. perforating, punching, slitting or trimming using presses or dies
Procede de fabrication d'une feuille metallique avec au moins une zone de surepaisseur integree pour joint metallique serre, notamment un joint de culasse et feuille obtenue