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Title: Nickel-copper electroforming process applied to rotational mould starting from additive manufacturing
Authors: Monzón, M. D. 
Diaz, N. 
Ortega, Z. 
Paz, R. 
Ortega, F. 
Benítez, A. N. 
UNESCO Clasification: 331212 Ensayo de materiales
330309 Operaciones electroquímicas
Keywords: Electroforming
Additive manufacturing
Rotational moulding, et al
Issue Date: 2016
Publisher: 0020-2967
Journal: Transactions of the Institute of Metal Finishing 
Abstract: This paper focuses on the development of a more energy-efficient mould for rotational moulding of plastic parts where the tool is made by electroforming of two materials (Ni–Cu), starting from a model of additive manufacturing. Studies on the poor adhesion between nickel and copper layer have not been previously carried out. The paper presents the entire design process of the mould, the electroforming process and activation procedures, and the mould testing under real conditions, comparing it with a conventional CNC machined aluminium mould. Also presented is an experimental study of different treatments of electroformed Ni substrate to provide good adherence for the electroforming of Cu. The best treatment (nitric acid) was applied to a mould for rotational moulding. The main findings of the work are a viable approach for good adherence between Ni and Cu, the advantage of additive manufacturing and electroforming as well as the standardisation of such innovative tooling in rotational moulding.
ISSN: 0020-2967
DOI: 10.1080/00202967.2016.1161882
Source: Transactions of the Institute of Metal Finishing[ISSN 0020-2967],v. 94, p. 120-126
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