[题目] 优化技术在确定薄壳零件注塑工艺参数中的应用

[作者] Hasan Oktem, Tuncay Erzurumlu, Ibrahim Uzman

[摘要] 本文探讨了将田口优化技术应用于减少薄壳塑料零件生产过程中由工艺参数引起的翘曲问题。为了实现这一目标，我们利用L27和L9田口正交设计的三个级别组合，进行了多次MoldFlow分析。我们使用信噪比（S/N）和分析方差（ANOVA）来确定最佳水平，并指出工艺参数对翘曲和收缩的影响。结果表明，翘曲和收缩分别改善了约2.17%和0.7%。在确定工艺参数的最佳水平后，我们还进行了验证试验，以证明田口优化技术的有效性。从这一结论中可以清楚地推断，对于矫形器部分的薄壳塑料组件，田口优化技术足以解决翘曲与收缩问题。

[关键词] 实验设计、塑料注塑成型、田口优化技术

[Title] Application of Taguchi optimization technique in determining plastic injection molding process parameters for a thin-shell part

[Author] Hasan Oktem, Tuncay Erzurumlu, Ibrahim Uzman

[Abstract] This paper deals with the application of Taguchi optimization technique to reduce warpage problem related to the shrinkage variation depended on process parameters during production of thin-shell plastic components for orthose part. For this purpose, a number of MoldFlow analyses are carried out by utilizing the combination of process parameters based on three-level of L27 and L9 Taguchi

orthogonal design. The signal-to-noise (S/N) and the analysis of variance (ANOVA) are used to find the optimum levels and to indicate the impact of the process parameters on warpage and shrinkage. The results show that warpage and shrinkage are improved by about 2.17% and 0.7%. A verification test is also performed to prove the effectiveness of Taguchi technique after the optimum levels of process parameters are determined. It can be clearly inferred from this conclusion that Taguchi optimization is sufficient to solve the warpage problem with shrinkage for thin-shell plastic components of orthose part.

[Keywords] Design of experiment; Plastic injection molding; Taguchi optimization technique