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Metal Expansion Penetration on Concave Casting Surfaces of Cylinder Heads Cast in Grey Cast Iron
Växjö University, Faculty of Mathematics/Science/Technology, School of Technology and Design.ORCID iD: 0000-0003-0453-0503
2009 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Cylinder heads have an extremely complex shape with large areas of concave casting surfaces. The concave casting surfaces are often associated with metal expansion penetration problems or other surface defects, e. g. surface shrinkage. The defects cause high production costs due to component rejection and increased fettling time. This report presents an investigation of the microstructure in grey cast iron close to the sand-metal interface affected by metal penetration in a complex shaped casting. The dominant penetration defect observed in the cylinder heads was expansion penetration. Even pre-solidification penetration and sand crack defects were observed. The microstructure found in the non penetrated areas is typical for solidification of grey iron cast in sand moulds.

Place, publisher, year, edition, pages
2009. p. 8-
National Category
Other Materials Engineering Metallurgy and Metallic Materials
Research subject
Technology (byts ev till Engineering), Mechanical Engineering
Identifiers
URN: urn:nbn:se:vxu:diva-7377OAI: oai:DiVA.org:vxu-7377DiVA, id: diva2:300672
Conference
9th International Foundrymen Conference, Opatija, Croatia
Available from: 2010-02-27 Created: 2010-02-27 Last updated: 2016-04-08Bibliographically approved

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Dugic, Izudin

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CiteExportLink to record
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