마이크로 분말사출성형에서 바인더 물성이 피드스탁 및 성형공정에 미치는 영향에 관한 연구
A study on the effect of binder properties on feedstock and micro powder injection molding process
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초록
The fabrication process of micro pattern structure with high precision and high aspect ratio using powder injection molding (PIM) is developed. In the PIM process, the metal powder is mixed with the binder systems and the mixture is injected into the metal mold. The injection molded green parts are debinded and sintered to reach final shape and properties. In this method, the optimization of physical properties such as fluidity and strength of the binder system is essential for perfect filling the high aspect ratio micro-pattern. For this purpose, the correlation between the properties of the binder system and feedstock and ${\mu}-PIM$ 수식 이미지 process was investigated, and a binder system with low viscosity at low temperature(about $110^{\circ}C$ 수식 이미지) and high strength after cooling was investigated and applied. Employing this process, high precision parts with line type micro pattern structure which has pattern size $160{\mu}m$ 수식 이미지 and aspect ratio more than 2 can be manufactured.
Abstract
The fabrication process of micro pattern structure with high precision and high aspect ratio using powder injection molding (PIM) is developed. In the PIM process, the metal powder is mixed with the binder systems and the mixture is injected into the metal mold. The injection molded green parts are debinded and sintered to reach final shape and properties. In this method, the optimization of physical properties such as fluidity and strength of the binder system is essential for perfect filling the high aspect ratio micro-pattern. For this purpose, the correlation between the properties of the binder system and feedstock and ${\mu}-PIM$ 수식 이미지 process was investigated, and a binder system with low viscosity at low temperature(about $110^{\circ}C$ 수식 이미지) and high strength after cooling was investigated and applied. Employing this process, high precision parts with line type micro pattern structure which has pattern size $160{\mu}m$ 수식 이미지 and aspect ratio more than 2 can be manufactured.