| Summary: | 碩士 === 國立中央大學 === 機械工程學系 === 107 === Optical plastic lenses employed an injection molding process to produce high-precision lenses with precise geometry control. The warpage must be controlled within the required tolerance to avoid the problem of poor-fitting of the parts due to excessive lenses warpage during lenses assembled. In the industry, the improvement of product yield is often carried out by parameter design. Parameter design is critical to enhancement of a system’s robustness by identifying specific control factors and their levels that make the system less sensitive to noise. Most engineers employ Taguchi methods to optimize parameter design. However, Taguchi method can only obtain the discrete optimal solution, and can’t identify the real optimum when the parameter values are continuous. The purpose of this study is to optimize the design of the mold flow process parameters on optical lenses. We combined Taguchi method and response surface method for parameter optimization, and employ Moldex3D software for mold flow analysis. Taguchi method can reduce the number of experiments and obtain the discrete optimal solution, and response surface method for parameter optimization Finally, we discuss the impact of process parameters on lenses warpage. The results of this study can provide a process optimization on product parameter design to engineers.
|
|---|
