Optimization of the injection molding process for short-fiber-reinforced composites
Optimization of the injection molding process for short-fiber-reinforced composites
复制标题
短纤维增强复合材料注射成型工艺优化
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
R. Chien
中科院分区：
文献类型：
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作者：
Ch.;T. Chen;Sh.;R. Chien
提出了一种结合有限元法和田口法的快速有效的方法来确定短纤维增强聚碳酸酯复合材料注射成型工艺的最佳设计条件。采用基于有限元的流动模拟软件M-flow对成型过程进行模拟，得到所需的纤维取向分布。采用田口优化技术确定注射成型参数的最优设置，使剪切层厚度最大化。研究了填充时间、熔体温度、模温、注射速度等4个主要参数对纤维取向或剪切层厚度的影响。发现填充时间是主要参数。确定了获得最厚剪切层的四个参数的最佳水平。
A fast and effective methodology integrating the finite-element and Taguchi methods is presented to determine the optimal design conditions of the injection molding process for short-fiber-reinforced polycarbonate composites. The finite-element-based flow simulation software, M-flow, was employed to simulate the molding process to obtain the fiber orientation distributions required. The Taguchi optimization technique was used to identify the optimal settings of injection molding parameters to maximize the shear layer thickness. The effects of four main parameters — the filling time, melt temperature, mold temperature, and injection speed — on the fiber orientation or the shear layer thickness were investigated and discussed. It is found that the dominant parameter is the filling time. The best levels of the four parameters to acquire the thickest shear layer are also identified.