Ifa-technologies Gmbh

David Schmicker

Martin Schmidt

Paul Geppert

Frank Trommer

Marcus Kreibich

Andreas Krueger

Andreas Krüger

A torsion-elastic cardan joint for connecting a shaft with a second component that is not continuously coaxial during torque transmission, which comprises a torsion-elastic power transmission system, a flange connected to this in a torque-proof manner, and a second flange connected to this in a torque-proof manner on the opposite end face of the torsion-elastic power transmission system. The shaft-side flange is coaxially connected to the shaft and the second flange is coaxially connected to the second component in a torque-proof manner. The shaft-side flange consists of a dimensionally stable disk-shaped flange part (). The shaft is directly connected to this disk-shaped flange part () in a torque-proof manner, for example, via friction welding. As a result, there is no need to adapt the shaft-side flange to the dimensions of the shaft.

Torsionally elastic shaft joint and method of making the same

A joint-site structure for components to be connected by overlap friction welding. At least one step of at least one component, on which an axially set-back ring-shaped joining surface is situated, is provided with a radial undercut, in such a manner that on the face side, a region of this step that is unchanged in diameter forms a radial support ridge, which is connected with the at least one component by way of a heat throttle that is reduced in cross-section. The length of each step is designed in such a manner that when the face surface of the one component makes contact with the ring-shaped joining surface of the other component, the other face surfaces of these components, which surfaces lie opposite one another in the same radial position, are still exposed until completion of the friction-welding process.

Joint-site structure for components to be connected by means of overlap friction welding, and method for connecting components by means of friction welding

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Magdeburg, Germany

David Schmicker