Rapid prototyping process

B - Operations – Transporting – 32 – B

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B32B 15/08 (2006.01) C23C 18/16 (2006.01)

Patent

CA 2522504

A method for producing injection-moulding, shaping, cutting and/or casting tools, as well as prototypes, starting from models, is characterised by the following steps: i. the model surface is roughened without a preliminary chemical treatment of the model surface; ii. an intermediate copper or nickel layer is applied to the surface of the model, the intermediate metallic layer not being applied by thermal spraying, CVD, PVD or laser treatment; iii. a metallic or ceramic coating is applied to the intermediate layer by thermal spraying; and iv. the model is removed from the intermediate layer.

Ce procédé de fabrication d'outils de moulage par injection, de façonnage, de découpage et/ou de coulée, ainsi que de prototypes à partir de modèles, se caractérise par les étapes suivantes : i. la surface du modèle est rendue rugueuse sans traitement chimique préalable ; ii. une couche intermédiaire en cuivre ou en nickel est appliquée sur la surface du modèle, cette couche intermédiaire métallique n'étant pas appliquée par projection à chaud, par déposition chimique en phase vapeur, par déposition physique en phase physique ou par un traitement au laser ; iii. un revêtement métallique ou céramique est appliqué sur la couche métallique par projection à chaud ; et iv. le modèle est enlevé de la couche intermédiaire.

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