Process for fabricating a metallic sheet with at least one integrated raised surface zone for a compressed metallic gasket, particularly a cylinder head gasket, and sheet thus obtained

摘要

A process for fabricating a metallic sheet containing at least one raised surface zone. The process including the steps of making at least one cutout ( 20 ) in said metallic sheet ( 10 ) to obtain at least one flap ( 22 ), subjecting the said at least one flap ( 22 ) to deformation with bending and extension so as to form an overlap, and flattening and calibrating the protruding height of said at least one flap ( 22 ) to form a raised surface zone ( 24 ) of adjusted