Optimization of injection molding process for automobile headlamp brackets

This study discusses the variant of weight in injection molding of automobile headlamp brackets. The purpose of this study expects to use the minimum number of experiment to get the optimum combinations of factor-level for injection molding process. This study utilizes the parameter design of quality engineering to carry on the experiment and data analysis. The effect maps of factors are utilized to choice the optimum combination of factor-level. The analysis of variance and confirm experiment are utilized to verify the correction of experiment results. The factors and levels of this study are appropriate if the confidence intervals of quality characteristics that are applied to confirming experiment fall in 95%.