The use of rapid prototyping in the joining of fractured historical silver object

Author:

Seixas Maria Luiza,Assis Paulo Santos,Figueiredo João Cura D’Ars,Pinto Maria Aparecida,Paula Daniella Gualberto Caldeira

Abstract

Purpose This paper aims to present a proposal for the restoration of a silver crown by means of fitting pieces produced by the process of 3D modelling and rapid prototyping. It also analyses the benefits of this procedure in restoration of objects weakened by corrosive processes. Design/methodology/approach Elemental chemical analysis was carried out in the alloy used in the manufacture of the crown and the constructive and corrosive processes present were studied. Three fitting pieces were modelled and prototyped in wax casting by the stereolithography apparatus system aiming to restore the part and protect the original metal against impacts and external tensions which could speed up some deterioration processes. Findings The procedure presented in this paper has shown that formal and dimensional accuracy, only achieved by means of 3D technologies, made the restoration and mechanical stability of the crown possible without the use of adhesives or welding. Originality/value The proposed procedure is a new restoration alternative which causes minimal impact to the object and abides by the main standards for modern conservation. It is made with metal which is compatible with the original piece, retractable and easily identifiable.

Publisher

Emerald

Subject

Industrial and Manufacturing Engineering,Mechanical Engineering

Reference23 articles.

1. Innovative users of 3D technologies to assist the restoration of a fragment terracotta statue;Journal of Cultural Heritage,2013

2. Ancient and modern joining techniques on a bronze Hellenistic urn,2008

3. Usage of accuracy models in stereolithography process planning;Rapid Prototyping Journal,2000

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