COMPOSITE COMPONENT OBTAINED BY MECHANICAL COUPLING BY CLINCHING AND METHOD OF ITS PRODUCTION Russian patent published in 2019 - IPC B21D39/03 

FIELD: technological processes.

SUBSTANCE: invention of claimed group relates to metal forming and can be used in production of composite components produced by mechanical coupling by clinching. Composite component consists of two or more steel sheets and includes at least one area of connection, in which peel strength is 0.200 kN/mm or more, and this component has hardness making 360 HV or more. Said two or more steel sheets are heated to Ac3 or higher temperature and these sheets are joined by mechanical clamping. At that, interrelation of carbon equivalent for these steel sheets, retention time at lower dead point and temperature of connection beginning during connection by mechanical coupling by clinching meet certain conditions.

EFFECT: higher quality of sheet connection.

5 cl, 6 dwg, 6 tbl