Production of metallic tools by ceramic moulding - a rapid tooling process

• Type: Article in International Conference Proceedings Book
• Date: 2002

Authors

Teresa P. Duarte (Author) FEUP; F. Jorge Lino (Author) FEUP; António Barbedo (Author) FEUP; José Maria Ferreira (Author) Other; Rui Neto (Author) FEUP

Conference proceedings National

Title: rpd2002-advanced solutions and development

rpd2002-advanced solutions and development

Marinha Grande, 8 e 9 October 2002

Scientific classification

FOS: Engineering and technology > Mechanical engineering

CORDIS: Technological sciences > Engineering > Mechanical engineering

Other information

Abstract (EN): The conversion of rapid prototyping models into metallic tools for plastics injection using a ceramic moulding process is presented. The process main steps used in this experimental work were: production of the model (by rapid prototyping or conventional techniques), conversion into a silicone mould, production of a ceramic mould by casting a ceramic slurry that suffers a sol-gel reaction into a box, casting an alloy and finishing. Processing parameters like preheating of the ceramic moulds, pouring temperature and heattreating of the moulds have a very important influence on the final characteristics of the metallic tools. This work presents the influence of the above parameters on the surface roughness, mechanical strength, dimensional changes, microstructure and capacity of details reproduction of the metallic tools.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 5