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Micro Metal Injection Molding Using Hybrid Micro/Nano Powders
Nishiyabu Kazuaki,Kakishita Kenichi,Osada Toshiko,Tanaka Shigeo 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1
This study aims to investigate the usage of nano-scale particles in a micro metal injection molding (-MIM) process. Nanoscale particle is effective to improve transcription and surface roughness in small structure. Moreover, the effects of hybrid micro/nano particles, Cu/Cu and SUS/Cu were investigated. Small dumbbell specimens were produced using various feedstocks prepared by changing binder content and fraction of nano-scale Cu particle (0.3 and in particle size). The effects of adding the fraction of nano-scale Cu powder on the melt viscosity of the feedstock, microstructure, density and tensile strength of sintered parts were discussed.