Contact hook and contact arrangement for providing an electric contact to a winding arrangement of an electric machine and method of producing a contact arrangement

A contact hook for providing an electric contact to a winding arrangement of an electric machine, comprising

• a fastening portion for fastening to the electric machine, which provides a first contact surface for a resistance welding electrode, and
• a hook portion adjoining the fastening portion, which provides a second contact surface for a resistance welding electrode,
• wherein the hook portion is designed and arranged to form with the fastening portion a groove for receiving a wire connected to the winding arrangement in a first assembly state, in which a free end of the hook portion forms, at a distance from the fastening portion, a groove opening for inserting the wire into the groove, wherein the free end of the hook portion in a second assembly state rests against the fastening portion, closing the groove opening, in such a way that the first contact surface and the second contact surface run plane-parallel to one another.