Uso de molde permanente na fabricação de panela de alumínio fundido.

Abstract

This paper evaluated the use of permanent mold in the manufacture of cast aluminum pans in the gravity casting method. Starting from an existing tool, a mold was developed for the manufacture of a batch of parts so the parameters used in the production of the parts could be registered and analyzed. With the acquired theoretical knowledge, tool manufacturing and parameter analysis, we sought to understand the functioning of permanent molds in the foundry process. The data recorded for analysis were the pouring aluminum temperature, the both part of mold temperature prior to filling and the approximate time of solidification. Subsequently to the manufacture of the batch of parts using the developed tool, each casted pan was analyzed and relating to the production parameters, it was sought to understand the relationship of each parameter with the production defects presented. The results pointed to a mold cavity filling failure, possibly caused by a wrong positioning of the pouring cup in the mold.