Ks Kolbenschmidt Gmbh

Michael Albert Janssen

Gerhard Luz

Volker Gniesmer

Franz Ratzky

Wolfgang Köhler

Martin Weissert

Steffen Stork

The arrangement relates to a method for producing a cooling duct piston for an internal combustion engine, having the steps of producing a top piston part by introducing a combustion bowl, a cooling space of a part of a cooling duct and overflow ducts, producing a bottom piston part by introducing a part of a cooling duct, and joining the piston parts, wherein at least one transfer duct is created by bores. A cooling duct piston produced by the method is disclosed.

Particular arrangement of a cooling duct connecting bore of a cooling duct

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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Mosbach, Germany

Michael Albert Janssen