Abstract: A method for producing a composite component includes providing a first component with a plastic layer, providing a second component which is formed at least partially from metal, and connecting the first component to the second component to form the composite component. At least one connecting element made of metal is positively connected to the first component and electrical resistance welding to the second component so that between the connecting element and the second component a welded connection is produced.

Abstract: A method for producing a composite component includes providing a first component with a plastic layer, providing a second component which is formed at least partially from metal, and connecting the first component to the second component to form the composite component. At least one connecting element made of metal is positively connected to the first component and electrical resistance welding to the second component so that between the connecting element and the second component a welded connection is produced.

Abstract: The invention pertains to a method for manufacturing a sandwich sheet (15) with the steps of: making available an unprocessed sandwich sheet (9) with a first metal sheet (10), a second metal sheet (11) and a plastic layer (12), in which the plastic layer (12) is arranged between the two metal sheets (10, 11), locally heating the metal sheet (10, 11) and locally heating the plastic layer (12) in a local connecting region (14), deforming the metal sheet (10, 11) in the local connecting region (14) such that the heated plastic layer (12) is displaced between the two metal sheets (10, 11) in the local connecting region (14) and the two metal sheets (10, 11) are contacted in the local connecting region (14), and welding together the first and the second metal sheet (10, 11) in the local connecting region (14), in which the two metal sheets (10, 11) were contacted, such that the two metal sheets (10, 11) are connected to one another by means of a welded joint (16) in the local connecting region (14), wherein a tool

Abstract: A welding device for welding a thicker sheet and a thinner sheet arranged congruently together. A first welding electrode having a first heat reflector or welding mirror contacts the thicker sheet with a first contact surface. A second welding electrode having a heat reflector or second welding mirror contacts the thinner sheet with a second contact surface. The first and second contact surfaces 8, 10 are at least partially congruent, and the first contact surface is larger than the second contact surface by at least a factor of two.