Ks Kolbenschmidt Gmbh

Rheinmetall Invent Gmbh

Martin Weissert

Volker Gniesmer

Gerhard Luz

Michael Albert Janssen

Steffen Stork

Ingo Goutier

A leaf spring device for a vehicle, comprising a leaf spring apparatus made of a fiber composite plastic, a first bearing point provided at a first end section of the leaf spring apparatus for supporting the leaf spring device on the vehicle, the first bearing point comprising exactly three rotational degrees of freedom, and a second bearing point provided at a second end section of the leaf spring apparatus facing away from the first end section for supporting the leaf spring device on the vehicle, the second bearing point comprising exactly one rotational degree of freedom.

Leaf spring device, chassis and vehicle

A method for producing a piston of an internal combustion engine, designed as a one-piece cooling channel piston. The piston includes an upper part and a lower part supported by corresponding circumferential joining bosses together forming a joining zone. In order to produce a bonded joint of the upper part and the lower part, the joining bosses are connected by means of multiorbital friction welding in the region of a rotationally symmetrical or rotationally asymmetrical joining zone.

Piston for internal combustion engines, produced by means of a multi-orbital friction welding method

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Nordheim, Germany

Martin Weissert