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dc.contributor.authorMerchán, Mikel
dc.contributor.authorGarcía de Cortázar, Maider
dc.contributor.authorGalarraga, Haize
dc.contributor.authorBárcena, Jorge
dc.contributor.authorArtola, Antxon
dc.date.accessioned2019-01-25T10:23:55Z
dc.date.available2019-01-25T10:23:55Z
dc.date.issued2019-07
dc.identifier.citationMerchán, Mikel, Maider García de Cortázar, Haize Galarraga, Jorge Bárcena, and Antxon Artola. “Research on Coatings and Infiltration to Strengthen Ceramic Lost Cores Used in High-Pressure Die Casting Processes.” International Journal of Metalcasting 13, no. 3 (January 7, 2019): 597–603. doi:10.1007/s40962-018-00301-0.
dc.identifier.issn1939-5981en
dc.identifier.urihttp://hdl.handle.net/11556/676
dc.description.abstractLost cores used to manufacture complex aluminium components through high-pressure die casting (HPDC) processes need to withstand very high injection velocities and pressures. The conventional sand cores used in other casting processes, such as sand casting or low-pressure die casting, do not support the aggressive process parameters of the HPDC, so advanced ceramic cores must be used. These cores must be strong enough not to get broken during the casting process, but, at the same time, they must have a minimum porosity to be easily removed from the casting to obtain the finished part. Due to this porosity, the aluminium penetrates the core surface during the casting process. So, the criterion here is to find the necessary compromise between strength and porosity and to protect the core surface from the aluminium penetration. In this work, two research lines have been followed to address these challenges. On the one hand, different refractory coatings have been applied to the ceramic core surface with the aim of sealing it. Amongst the coatings analysed, boron nitride-based one has been found to be the most suitable and cost-effective solution to avoid aluminium penetration. On the other hand, silica has been proved to be a suitable infiltration agent to increase the strength of the core.en
dc.description.sponsorshipThis work has been carried out under the framework of the CORE 4.0 project funded by the European Union’s Horizon 2020 research and innovation programme under grant agreement no 701197. The authors wish to show their gratitude to Rauschert Italia for manufacturing the ceramic cores and the bars, Edertek for helping with the die casting trials and machining of the samples and FerroCˇrtalicˇ for making the de-coring tests.en
dc.language.isoengen
dc.publisherSpringer International Publishingen
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.titleResearch on Coatings and Infiltration to Strengthen Ceramic Lost Cores Used in High-Pressure Die Casting Processesen
dc.typearticleen
dc.identifier.doi10.1007/s40962-018-00301-0en
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/701197/EU/High Pressure Die Casting (HPDC) Lost-Core (LC) technology for the production of Aluminium Closed Deck blocks for next generation Euro7 engines/CORE 4.0en
dc.rights.accessRightsopenAccessen
dc.subject.keywordsHPDCen
dc.subject.keywordsLost coreen
dc.subject.keywordsAluminiumen
dc.subject.keywordsRefractory coatingen
dc.subject.keywordsInfiltrationen
dc.identifier.essn2163-3193en
dc.issue.number3
dc.journal.titleInternational Journal of Metalcastingen
dc.volume.number13


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