Abstract: In a method for assembling a plurality of component individual parts in stages to form a complex composite component, in order to achieve as high an accuracy as possible of the finished component, the individual parts are positioned relative to one another and fixed during the staged assembly process, such that there may be no need for any reclamping of the intermediate component between the individual assembly stages. For this purpose, a clamping frame is used, which is first equipped with some clamping elements, into which is introduced a first set of component individual elements which are assembled together with one another to form an intermediate component. In the second step, the clamping frame is equipped with further clamping elements, into which the component individual elements corresponding to them are introduced, and, in a further assembly step, these further component individual elements are assembled together with the intermediate component to form the finished component.

Abstract: In a method for assembling a plurality of component individual parts in stages to form a complex composite component, in order to achieve as high an accuracy as possible of the finished component, the individual parts are positioned relative to one another and fixed during the staged assembly process, such that there may be no need for any reclamping of the intermediate component between the individual assembly stages. For this purpose, a clamping frame is used, which is first equipped with some clamping elements, into which is introduced a first set of component individual elements which are assembled together with one another to form an intermediate component. In the second step, the clamping frame is equipped with further clamping elements, into which the component individual elements corresponding to them are introduced, and, in a further assembly step, these further component individual elements are assembled together with the intermediate component to form the finished component.

Abstract: A contact tube for supplying current in the case of a welding torch, having a tube body which contains a coaxial passage opening for a welding wire, the tube body containing a receiving opening coaxial to the passage opening, into which receiving opening at least one current transmission sleeve is inserted which consists of a material particularly suitable for transmitting current to the welding wire and which contains a coaxial passage which forms an axial section of the passage opening. Additionally, at least one guiding sleeve is inserted into the receiving opening, which guiding sleeve consists of a material particularly suitable for guiding the welding wire and which contains a coaxial passage which also forms an axial section of the passage opening.