塑膠射出成型為產業界常用的製造方法,過去影響塑件射出成型品質的控制參數選定與模具的設計,主要依賴經驗累積與及無數次試誤。本文利用田口實驗設計法,在品質獲得保證的情況下,以射出成型內含氣泡與空洞量最低與產品零件翹曲、變形尺寸最小等,作為參數評估選擇的指標,以尋求射出成型製程條件與模具設計的優化,之後並進行實際射出成型實驗與成品相關檢測。 氣泡、空孔、表面缺陷與翹曲影響非球面鏡之光學性質至鉅,惟以往的研究鮮少針對該主題進行研究,本文利用田口實驗設計法,規劃控制因子與配置直交表,搭配射出成型實驗與量測可迅速求出製程條件的最優化參數組合。為了解氣泡、空孔與表面缺陷對光學性質的影響,本研究亦自行建構穿透式干涉儀,以觀察缺陷的影響並進一步的證實了學理所言,因氣泡所產生之干涉現象。
Injection molding is the most important manufacturer method in industry. In the past, try and error method is applied to find the operating parameters. In this study, the Computer Aided Engineering (CAE) analysis and data analysis methods are adopted to simulate the injection molding process for the improvement of the mold design and modeling parameters control. The experiments are proceeded and the products are measured by 2.5D optical vision inspecting equipment. The bubbles and inclusions occurred in the molded plastic products are examined, which lead to the study of important factors in the mold design and process parameters control to ensure the product quality. Until now, there are few studies focused on the injection for less bubbles and inclusions in the literature. In this paper, the injection bubbles, inclusions, and warpage size of case reduction are considered as the target goal, the best operating parameters are then determined using Taguchi experimental design method. A aspherical lens for communication is selected as the example in this study to demonstrate the process which can improve the traditional try-and-error process used in injection molding industry. For solution the bubble and the surface defect to the optical quality influence, this research also voluntarily to build the penetration type interferometer to observe the influence flaw and affirm as the bubble to caufe the interference appearance.