PROCESS FOR MANUFACTURING A METAL SHEET HAVING AT LEAST A ZONE WITH INCREASED THICKNESS FOR A METAL GASKET, IN PARTICULAR A CYLINDER HEAD GASKET, AND METAL SHEET OBTAINED THEREWITH.

摘要

The method involves forming a cut in a metal sheet (10) to obtain a sliver. The sliver is deformed by folding and elongating the sliver along a non-cut line so as to obtain an overlapping. The elongation of the sliver is carried out at a free end of the sliver. The sliver is leveled and projecting height of the sliver is calibrated to obtain an over thickness zone (24) of adapted height (h). - An INDEPENDENT CLAIM is also included for a metal gasket comprising a metal sheet.