In this study, in order to confirm the machining characteristics of AISI 1020 CD-Bar, cutting was performed after strength measurement, and surface roughness analysis was performed according to cutting conditions. Tensile strength was reduced by about 27.7% compared to AISI 1045 material, and Rockwell hardness HRC was reduced by 46.7%. The surface roughness measurement after cutting was divided into roughing, semi-finishing and finishing turning. In particular, in finishing machining, the best surface roughness was confirmed when the cutting speed was 150m/min and the depth of cut was 0.6mm based on the feed rate of 0.05mm/rev.
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ABSTRACT 1. 서론 2. 실험장치 및 방법 2.1 강도 및 경도 측정 2.2 절삭 가공 2.3 표면 거칠기 측정 3. 결과 및 고찰 3.1 강도 및 경도 분석 3.2 표면거칠기 분석 4. 결론 References