Fold forming tool, fold forming device, method for producing a folded/bonded connection, and vehicle with folded/bonded connection

A method for producing a folded/bonded connection, the method comprising the steps of:

• providing an outer panel having a flange;
• arranging at least one edge region of an inner panel on the outer panel;
• arranging an adhesive on the edge region of the inner panel;
• and
• folding the flange over the edge region of the inner panel via a fold forming tool that is brought with its active surface into contact with the flange of the outer panel and is moved in a direction of its longitudinal axis along the flange, the fold forming tool having:
• a main body with a longitudinal axis;
• and
• an active surface positioned along an edge of the main body configured to fold over a flange, bent over from a metal sheet, onto the metal sheet by way of movement of the fold forming tool in a direction of the longitudinal axis along the flange in a working direction,
• wherein the active surface extends in the direction of the longitudinal axis of the main body and is in a form of a helical surface which is produced by a straight line helically wound around a rectilinear or a curved helical axis extending along the edge of the main body, wherein the straight line extends from the rectilinear or a curved helical axis at an acute angle, as viewed in the working direction.