Process for the chip-forming machining of thermally sprayed cylinder barrels

US7584735B2 · 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: Sep 8, 2009
• Expiry date: Mar 25, 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 chip-forming machining of thermally sprayed cylinder barrels of a cylinder crankcase, 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. Machining of an insertion bevel and/or an end bevel and/or the cylinder head sealing surface and/or the crankshaft space and/or a cylinder bore is carried out in a chip-forming manner, and a respective chip-forming tool is guided so that the respective cutting edges penetrate into the material which is to be removed from the outside.