Process for processing cylinder crankcases having sprayed cylinder barrels

US7415958B2 · kind B2 · utility

Assignee

• Daimler AG · DE

Inventors

• Jens Boehm · Blaustein, DE
• Dieter Brackenhammer · Tauberbischofsheim, DE
• Stefan Diessner · Wernau, DE
• Axel Heuberger · Wildberg, DE
• Patrick Izquierdo · Ulm, DE
• Herald Pfeffinger · Tiefenbronn, DE
• Dezsoe Schilling · Hemmingen, DE
• Juergen Traber · Fellbach, DE
• Nazario Vocino · Stuttgart, DE
• Walter Zwink · Freiberg, DE

Key dates

• Filing date: Aug 4, 2005
• Grant date: Aug 26, 2008
• Expiry date: Mar 27, 2026

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49272
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

In a process for processing cylinder crankcases having sprayed cylinder barrels, in which process a cylinder crankcase is cast, those surfaces of the subsequent cylinder barrels which are to be thermally coated are roughened, the cylinder barrels are coated by a thermal spraying process, and the cylinder barrels are remachined to final dimensions. After the thermal spraying process, coating material is at least partially removed from the crankshaft-side part of the cylinder crankcase.