CNC선반 원통선삭의 가공조건 변화에 따른 표면거칠기 특성에 관한 연구 = A Study on the Surface Roughness Characteristics according to the Cylindrical Cutting Conditions by CNC Lathe

다국어 초록 (Multilingual Abstract)

In this study the influence of amterials with different hardness on cutting effects were inverstigated. As for the specimen, S20C and S45C were used. Throw-away insert tip(KIP30) and PSBNR 2020 K12 were sued for bite and bite holder respectively. For measuring the surface roughness of workpieces Taylor Hobson Talysurf 10 was used. As for the wear land measurment, Union Co. Tool Maker Microscope was used. From experiment of flank wear and cutting force measurment, following results were obtained.
According to the flank wear, cutting force increased and reached maximum value and decreased until the tool life expired. The cutting force increased rapidly after the tool life. Feed rate and cutting depth oF the S20C were 0.05mm/rev, 0.1mm and those of S45C were 0.1mm/rev, 1.5 mm respectively. Cutting velocity of two test materials were 100m/min, 200m/min and 310m/min. The rate of flank wear increase was propositional to the cutting depth at high cutting velocity while it was nonlinear at middle and low cutting velocity range.

목차 (Table of Contents)

• 1. 서론
• 1) 연구배경
• 2) 연구목적
• 2. 이 론
• 1) 공구수명
• 2) 표면조도의 측정이론
• 3) 조도계수
• 4) Chip의 현상
• 3. 실험장치 및 방법
• 1) 실험장치
• 2) 실험방법
• 4. 결과 및 고찰
• 1) 가공조건에 따른 공구마모량
• 2) 가공조건과 Chip형상과의 관계
• 5. 결 론
• * 참고문헌