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中文摘要：
基于响应面法（RSM）,通过一系列的实验建立了薄壁蜡模壁厚方向的收缩率与压蜡参数之间的数学模型,并对模型的合理性与充分性进行了方差分析,对压蜡过程中工艺参数对尺寸收缩率的影响进行了敏感性分析.为了减小收缩率,基于遗传算法（GA）对工艺参数进行了全局优化.
英文摘要：
A response surface methodology（RSM） model was built to describe the relationship between the shrinkage in the thickness direction of the thin walled wax part and injection parameters through experiments. The rationality and adequacy of the model were checked via analysis of variation（ANOVA）. Be sides, a sensitivity analysis for injection parameters on the dimensional shrinkage variation was conducted. Additionally, in order to reduce the shrinkage, the optimal injection conditions were also obtained by calculating the desirability and genetic algorithm（GA） approach.
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