SCM440의 선삭가공시 CBN공구와 CBN코팅공구의 절삭특성 비교
Cutting Characteristics Comparison between CBN and Coated CBN Tools in Turning SCM440
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참고문헌
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초록
The purpose of this study is to investigate cutting characteristics and wear behavior in SCM440 steel with different cutting tools, CBN(Cubic Boron Nitride) and coated CBN. During the test coated CBN tool especially with TiAlN showed better wear resistance behavior than orginal CBN tools. In the interrupted cutting condition, axial groove affected tool surface with impact force during the turning operation. For advantageous turning parameter in the interrupted process it is recommendable that lower speed. Also surface roughness showed better behavior in the coated CBN tool conditions than normal CBN conditions. Mainly this is caused by reduced friction between material and tool surface with coated layer.
Abstract
The purpose of this study is to investigate cutting characteristics and wear behavior in SCM440 steel with different cutting tools, CBN(Cubic Boron Nitride) and coated CBN. During the test coated CBN tool especially with TiAlN showed better wear resistance behavior than orginal CBN tools. In the interrupted cutting condition, axial groove affected tool surface with impact force during the turning operation. For advantageous turning parameter in the interrupted process it is recommendable that lower speed. Also surface roughness showed better behavior in the coated CBN tool conditions than normal CBN conditions. Mainly this is caused by reduced friction between material and tool surface with coated layer.
참고문헌 (11)
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- Sanvik coromant, "Modern Metal Cutting, A practical handbook", pp.2~8 (1995)
- Baldoni J. G, "Ceramic for Machining", Am. Ceramic. Soc. Bull, 167(2), pp.381~387 (1988)
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- 홍재원, "코팅기술을 통한 절삭공구 수명향상", 한국 자동차공학회, 생산기술 부문 학술강연 논문집, pp.192~200 (2001)
- 김해지, "냉간단조 공정에서 TiN 코팅이 제품의 표면특성에 미치는 영향에 관한 실험적 연구", 한국정밀공학회지, 22(1), pp.47~52 (2005), 한국정밀공학회
- 김종성, "극한 절삭조건에 적합한 새로운 다층 TiAlN 코팅", 한국정밀공학회, pp.783~791 (2000)
- 김종성, "PVD", PACVD 코팅개론, 2007, pp.24(5), 7~13