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조환영(Hwan-young Cho),장동규(Dong-Kyu Jang),이희관(Hi-Koan Lee),공영식(Young-Sik kong),양균의(Gyun-Eui Yang) 한국자동차공학회 2002 한국자동차공학회 Symposium Vol.2002 No.11
The impeller is the core part of a turbomachinery such as a generator, turbo charger, compressor, turbo engine and jet-engine. This study presented an efficient roughing method of machining impeller. The method consists two categories. One is selecting optimal tool radius and tool attitude by dividing cutting area into two regions to reduce cutting time. The regions are determined by character point on the geometry of impeller blade. The other is avoidance of tool interference. Tool interference in cutting areas is avoided by checking the intersection between cutting tool axis and ruling line on blade surface.