| 摘要 |
A method for joining at least two workpiece layers (1, 2) by introducing a connecting element (10) with a coating (15) applied externally to the connecting element (10), where the connecting element (10) is guided, in particular punched, through the first workpiece layer (1) by a ram (26), forming a cut surface (1), and penetrates at least partially into the second workpiece layer and is deformed by a die (21) such that it connects the at least two workpiece layers (1, 2) together in a form-fitting manner. The connecting element (10) is heated such that the coating (15) applied externally to the connecting element (10) melts and wets, in particular completely closes, the cut surface in the first workpiece layer (1); after a cooling process, the re-solidified coating (15) adheres to the cut surface of the first workpiece layer (1). |
| 主权项 |
1. A method for joining at least two workpiece layers, the method comprising:
providing a connecting element having a coating which is applied to the outside of the connecting element, wherein the connecting element is introduced into the workpiece layers by means of a joining device at a joint; by means of a stamp, guiding the connecting element, from a direction of a first workpiece layer and under exertion of a stamping force, and while forming a cutting face in the first workpiece layer or passing beside a cutting face of the first workpiece layer, through at least the first workpiece layer and the connecting element penetrating, at least in part, the second workpiece layer, wherein the connecting element, by means of a die plate bearing on the second workpiece layer, is deformed under exertion of the stamping force onto the connecting element, such that said connecting element, in a form-fitting manner, interconnects the at least two workpiece layers; heating the connecting element, during the process, to such an extent that the coating melts and wets the cutting face in the first workpiece layer, wherein the coating re-solidifies after a cooling process to form a re-solidified coating, said re-solidified coating adhering to the cutting face of the first workpiece layer. |
