Mejoramiento del rendimiento metálico y de molde en la fundición de hierro nodular y moldeo con resinas furánicas.

Abstract

The following work of curricular integration describes the procedure to obtain the models for the manufacture of the D600C manhole cover cast in ductile iron 80- 55-06 by means of the die casting process constituted in furan resin, catalyst, and sand, considering as part of the design the optimization of the metallic and mold performance yield. For this, the starting point was the dimensioning of a filling system in an analytical way, to later merge it with Taguchi's approach, generating multiple experiments, which were able to predict and avoid the generation of casting defects during the design phase. The evaluation of the different proposals had a numerical approach, where, based on finite element simulation, the filling and solidification phenomena were represented. As a result, the ideal ratio of the proportions of the sprue, runner and gate areas was obtained to produce a circular cast element without defects. Finally, with the proposed CAD model, the CAM model was obtaining for its manufacture by fused deposition modeling; noticing an increase of ten and decrease of twelve percent for the metallic and mold yields respectively.