A method for producing a defined enlargement of the material in a flat metallic position for a stopper of a flat gasket, as well as manufactured according to the flat gasket

摘要

A method for producing a defined enlargement of the material in a flat metallic layer (2) for a stopper of a flat gasket, comprising the steps of:– Providing a flat metallic layer (2);– Generating a passage opening (4) in the layer (2) at the location of the enlargement of the material to be formed;– Providing a stop (6) on a first side of the layer (2) in the region of the passage opening (4), wherein the stop (6) the thickness of the enlargement of the material; and– Performing a rotating tool tip (8) through the passage opening (4), of the second side in the direction of the first side, wherein the material of the layer (2) in the region of the passage opening (4) by friction on the tool tip (8) is heated and of the tool tip (8) to the stop (6) is displaced towards.