Mtu Motoren-Und Turbinen-Union Munchen Gmbh

Mtu Motoren-Und Turbinen-Union Muenchen, Gmbh

Norbert Legrand

Thomas Uihlein

Hans Weber

Erwin Fischhaber

Herbert Fischer

Johannes Schr&ouml;der

Johannes Schroder

An armor coating (,) is provided on a surface of a metal engine component (,) that is adapted to be in grazing contact with an abradable bedding-in seal lining provided on a second engine component. The armor coating (,) includes a ceramic layer (,) and has a profiled surface contour including peaks (,) and depressions or grooves (,) therebetween. The grooves (,) serve to receive and carry away abrasion material that is abraded from the bedding-in lining. The profiled surface contour is formed in the surface (,) of the engine component (,) by cold deformation without material removal, and thereafter the ceramic layer (,) is applied thereon preferably by thermal spraying, such that the layer (,) follows and also embodies the profiled surface contour. The cold deformation is carried out by pressing a knurling tool (,) into the original un-profiled surface (,) of the component (,).

Armor coating for a metal engine component, and method of producing the same

An abrasive coating is formed on the tip of a component of a drive unit for abrading an abradable coating during a stripping operation by thermal spraying a ceramic layer on the component, the ceramic layer being profiled and providing a succession of abrading edges and intermediate spaces between the abrading edges to take up and remove abraded material. The abrading edges can be formed as deposits of ceramic material on the component or, as a ceramic layer applied on a profiled surface etched on the component.

Strip coatings for metal components of drive units and their process of manufacture

Strip coatings for metal components of drive units and their process of

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Karlsfeld, Germany

Norbert Legrand