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

US5756217A · kind A · utility

Assignee

• MTU Motoren-und Turbinen-Union München GmbH · DE

Inventors

• Johannes Schroder · Hersbruck, DE
• Thomas Uihlein · Dachau, DE
• Hans-Leo Weber · Eschenried, DE
• Herbert Fischer · Goldkronach, DE
• Erwin Fischhaber · Großinzemoos, DE
• Norbert Legrand · Karlsfeld, DE

Key dates

• Filing date: Sep 15, 1995
• Grant date: May 26, 1998
• Expiry date: Sep 15, 2015

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/257
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

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.