http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
윤선진,허영무,한무근,정민영,강우승,Yoon, Seon-Jin,Heo, Young-Moo,Han, Mu-kun,Jung, Min-young,Kang, Woo-Seung 한국금형공학회 2014 한국금형공학회지 Vol.8 No.2
The narrow-pitched connectors are of interest for small-scale devices such as smart phones because of theirs caling. We conducted an injection molding analysis and a warp analysis for 0.3mm and 0.5mm pitch FPC connectors. We obtained a volumetric shrinkage of 4.344%, a clamping force of 0.2529 tonne, a maximum injection pressure of 76.3 MPa as optimized molding conditions for the 0.3mm pitch FPC connector. We found that, compared with the traditional injection molding technique, the injection molding for narrow-pitched connectors comes with distinct features like low clamping force, high injection molding pressure, and narrow gate size. Adding to the optimization analysis, the deflection of 0.5mm pitch FPC connector was analyzed as well. A maximum deflection of 0.053mm was calculated, which the actual deflection of 0.062mm was compared to. The results deduced a relative error of 17%. We conclude that the deflection analysis along with the optimization analysis can be used as an effective tool to predict the behavior of narrow-pitch connectors although the relative error may need to improve.
금형기술을 위한 생산기반 지식공유형 플랫폼의 개발과 적용
손수현(Soo-Hyun Son),허영무(Young-Mu Heo),윤길상(Gil-Sang Yoon),손종인(Jong-In Sohn),배성민(Sung-Min Bae) 한국소성가공학회 2011 금형가공 심포지엄 Vol.2011 No.9
Production technology, which is categorized into molding, casting, welding, heat treatment, surface treatment and plastic working, has influence on the foundation of Koreas main export industries. However, as production technology is mostly acquired and transferred through field experience, production technology is hard to standardize. On the other hand, it has a great ripple effect on the whole manufacturing industry because of developed production technology for some product is too easy to transfer. Therefore, this paper aims to suggest a web-based knowledge sharing platform for production technology knowledge sharing and diffusion, discuss effect and existing state of loaded technology focus on automobile and mobile industry.