The effects of intensification pressure, gate velocity, and intermediate shot velocity on the internal quality of aluminum die castings.

摘要

The purpose of this study was to investigate the effects of intensification pressure, gate velocity, and intermediate shot velocity on the internal quality of aluminum die castings. An experimental design was developed to analyze two levels of intensification pressure, two levels of gate velocity, and four levels of intermediate shot velocity. These parameters were chosen because of the ease of their manipulation on the manufacturing floor in an effort to develop an optimum process for a given die design.; Internal casting quality is measured by the density of the casting produced as compared to the theoretical density of the alloy being molded. The study also included monitoring of the biscuit length of the samples collected. A statistical analysis was conducted to determine any correlation between or among any of the independent variables or the other parameter monitored.; The results of this study indicate that there is a statistical significance among and between the independent variables that were controlled in this experiment. The results also indicated a significant positive relationship between biscuit length and the density of the resultant castings.