Method for producing a piston for an internal combustion engine and piston for an internal combustion engine

US8430077B2 · kind B2 · utility

Assignee

• Federal-Mogul Nurnberg GmbH · DE

Inventors

• Peter Konrad · Old Hickory, US
• Arnd Baberg · Bad Mergentheim, DE
• Marc-Manuel Matz · Friedberg, DE
• Peter Godel · Freienried, DE
• Werner Trubenbach · Obergriesbach, DE

Key dates

• Filing date: Jun 12, 2009
• Grant date: Apr 30, 2013
• Expiry date: Oct 25, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49265
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

In a method for producing a piston for an internal combustion engine, at least the region of the upper annular groove is at least partially recessed, an adhesion promoter layer containing aluminum is then applied, a wear-resistant layer is thermally sprayed onto said adhesion promoter layer and at least the upper annular groove is at least partially formed in said layers. The invention also relates to a piston for an internal combustion engine that comprises a base material, an adhesion promoter layer that contains aluminum and is applied to at least some regions of said material and a wear-resistant layer that is thermally sprayed onto said adhesion promoter layer. At least the upper annular groove is at lest partially formed in said layers.