Currently, due to the development of technology, the industry is proceeding with the development of advanced materials with high performance such as light weight, heat resistance and electric conductivity. Carbon Fiber Reinforced Plastics (CFRP) is an excellent material with high heat resistance, high strength and thermal shock resistance. In order to obtain excellent hole shape in CFRP drilling, we compared the modified drill shape and the conventional carbide drill. On the other hand, we determine the proper helix angle by observing the CFRP surface according to the helix angle at the trimming of the end mill proceeding after the hole machining.
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ABSTRACT 1. 서론 2. 실험방법 3. 실험 결과 및 고찰 3.1 구멍가공 시 절삭성능에 대한 드릴의 비교 3.2 드릴의 공구마모 비교 3.3 구멍의 입출구 형상 비교 3.4 구멍가공 후 트리밍 시 엔드밀 헬릭스 각도에 대한비교 4. 결론 후기 References