Computer-Aided Engineering (CAE) for the Gas-Assisted Injection Molding Process

本研究的主要目标是(1)建立气体辅助注射成型的科学基础，(2)开发一种描述过程的工程工具，以及(3)利用计算机模拟、现代传感器和设计指南来改进工艺技术。第一阶段的研究证明了模拟充型动态的技术可行性。它还展示了计算机辅助工程(CAE)的各种优点，它提高了工程师处理过程各个方面的能力。在第二阶段的研究中，进行了实验和计算两方面的工作，以加深对该过程的基本了解，并对灌装/保压/冷却/部件性能进行综合分析。强调与行业和大学合作，共同验证分析并巩固工程技术诀窍。这项研究的成功完成，充分利用了CAE的新工艺，提高了我国聚合物加工行业的竞争力。

The primary objectives of this research are (1) to establish the scientific basis for gas-assisted injection molding, (2) to develop an engineering tool for characterizing the process, and (3) to improve the process technology with computer simulation, modern sensors, and design guidelines. The Phase I research proved the technical feasibility of simulating the mold-filling dynamics. It also demonstrated the various merits of computer-aided engineering (CAE) which enhance engineers' capability in handling all aspects of the process. In the Phase II research, both experimental and computational work are conducted to further the basic understanding of the process and integrated filling/holding/cooling/part-performance analysis. Collaboration with industry and universities is emphasized to jointly verify the analysis and consolidate engineering know-how. Successful completion of this research enhances competitiveness of the nation's polymer-processing industry by fully utilizing the new process with CAE.