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A Study in Viking Age Brooches using Modern Technology: Simulating the Casting of a Baroque Bronze Brooch in Magma5 5.3.0.4
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.
2016 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

There is much that is unknown concerning the creation of Viking age brooches. Recreating these brooches in the same way they would have been created in the Viking age to try to understand how they were created is a time consuming project for experimental archaeologists.

 

This study has been done in order to find out if the time spent can be reduced and at the same time gain a better understanding of the creation of a Viking age brooch using 3D scanning and computer simulations. Casting simulations of a real Viking age brooch have been done using Magma5, a state of the art simulation software.

 

Simulations were run with several different casting systems, initial metal and mould temperatures, and both with as well as without the brooches distal figurines attached.

 

It was found that the initial metal and mould temperatures has got impact on the final result of the brooch, but the alloy and casting system has a much greater effect on the final result. The casting system that yielded the best result has the pouring basin directly above the medial part of the brooch and two sprues leading to gates on the north and south medial sides.

Abstract [sv]

Det är mycket som inte är känt om tillverkningen av vikingatida broscher. Att försöka återskapa dem på samma sätt som vikingarna antagligen skapat dem för att öka kunskapen kring broscherna är ett tidsödande jobb.

 

Denna studie har gjorts för att ta reda på om den tiden kan reduceras och samtidigt öka kunskapen kring broscherna med hjälp av modern teknik som 3D skanning och datorsimuleringar. Gjutsimuleringar av ett äkta vikingatida spänne har skett i Magma5, ett kraftfullt simuleringsprogram.

 

Simuleringar utfördes med hjälp av flera olika gjutsystem, stor variation i smältans och formens initiala temperaturer, och både med och utan broschens distal figuriner.

 

Studien har funnit att smältans och formens temperaturer har påverkan på broschens slutresultat, men legeringen som används och gjutsystemet har betydligt större påverkan på slutresultatet. Gjutsystemet som gav bäst slutresultat har ett inlopp som är placerat direkt över mitten på den mediala delen, och sedan förgrenar sig i två delar och ansluter till den norra och södra delen av formkaviteten.

Place, publisher, year, edition, pages
2016.
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:kth:diva-189283OAI: oai:DiVA.org:kth-189283DiVA, id: diva2:948821
Educational program
Master of Science in Engineering - Materials Design and Engineering
Supervisors
Examiners
Available from: 2017-04-03 Created: 2016-06-30 Last updated: 2017-04-03Bibliographically approved

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CiteExportLink to record
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