회주철(GC250)의 고속가공을 위한 엔드밀공구의 형상 설계 및 가공성 평가

Shape Design and Machinability Evaluation of Flat End mill for High Speed Machining of GC250 Material

In the present investigation, the improvement of processing efficiency in the high speed machining of GC250 is explored. This study is to evaluate the tool performance in difficult-to-material using the new developed tool. Tool performance evaluation are conducted by tool wear, surface roughness, chattering in machined surface. The tool wear of A type was smaller than B type. In type B tool the chatter mark was observed in machined surface. The good surface roughness was obtained in type A tool. Consequently, the tool performance of A type is better than B type.