| Resumo: | Aluminium filled epoxies moulds have been used in indirect rapid tooling. These moulds, which have a low cost processing, are very competitive, when applied in the manufacturing of low volume series. The geometry and the size distribution of the aluminium particles affect significantly the powder packing density, the resin ratio, the thermal conductivity, the curing time, the homogeneity and the mechanical characteristics of the tool. Using three high temperature epoxy resins it was possible to understand the resin behaviour in the presence of the aluminium filler and formulate filled resins with the best compromise of mechanical, thermal and processing performance.
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