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논문 기본 정보

자료유형
학술저널
저자정보
김진수 (한국폴리텍대학)
저널정보
한국기계가공학회 한국기계가공학회지 한국기계가공학회지 제20권 제5호
발행연도
2021.5
수록면
27 - 34 (8page)

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This study analyzes machining characteristics and presents optimal cutting conditions by measuring the surface roughness, dimensional accuracy, and dimension straightness based on the feed rate after processing the inner diameter hall of SCM415 steel using an automatic CNC(Computerized Numerical Control) lathe. The testing material was cut using an 11.8 mm-diameter Chamdrill after mounting the 32 mm-diameter round bar on an automatic CNC lathe. The cut depth was set at 3 mm, and the cutting speed was fixed at 1500 rpm. The surface roughness, dimensional accuracy, and dimension straightness of 15 testings were measured by changing the feed rate to 0.05, 0.1, and 0.15 mm/rev, respectively. It was difficult to process more than 15 tests during the maching due to noise or break. Additionally, the optimum cutting of SCM415 steel showed excellent surface roughness in the 10<SUP>th</SUP> and 11<SUP>th</SUP> of testing at cutting speed and feed speed of 1500 rpm and 0.05 mm/rev, respectively. The dimensional accuracy was measured in three dimensions after drilling, which showed good results with an average range of 0.0138–0.0208 mm. Moreover, the lower the feed speed, the higher the accuracy. Additionally, the measurement results of the dimensional straightness showed that the straightness is the straightness was the best at the 1<SUP>th</SUP> and 2<SUP>th</SUP> cutting regardless of the feed speed.

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ABSTRACT
1. 서론
2. 실험 장치 및 방법
3. 실험방법 및 고찰
4. 결론
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