期刊
MATERIALS AND MANUFACTURING PROCESSES
卷 21, 期 8, 页码 824-831出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/03602550600728083
关键词
high aspect ratio; microstructure; micro injection molding; micro parts; mold design
Technological advancements have led to an increase in demand for fabrication of small and cheap miniature components or parts, especially in the medical and electronic fields. In this research work, micro-rods of varying lengths and diameters were molded using a specially designed tabletop injection molding machine. The main purpose was to investigate whether complete filling of the microcavities was possible and whether small cavity openings will restrict melt flow into the cavities. Process parameters, such as injection pressure, mold temperature and melt temperature were varied. The micro-rods obtained were analyzed with Scanning Electron Micrographs (SEM). The results showed that injection pressure was the most important parameter for microinjection molding. The use of a vacuum system also yielded better results.
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