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밀리미터파 간섭계용 타원 반사경의 공구 변화에 따른 고속절삭 특성 연구
이상용(Sang-Yong Lee),김건희(Geon-Hee Kim),김효식(Hyo-Sik Kim),양순철(Soon-Cheol Yang),홍창덕(Chang-Deoc Hong),조병무(Byung-Moo Cho),원종호(Jong-Ho Won) 한국기계가공학회 2007 한국기계가공학회 춘추계학술대회 논문집 Vol.2007 No.-
This study aims to find the optimal cutting conditions, when ellipse mirrors consisted Aluminum alloy were made it the Millimeter-Wave Interferometer System mirror with several tools on the High-Speed Machine. Machining technique for precision machining characteristics of ellipse mirrors consisted Al6061 matter by Ball endmill is reported in this paper. , Results of machining on the High-Speed Machine(using NCD(Natural Crystalline diamond), WC and coated TiAlN ∅6㎜ ball endmill tool) had measurement of surface roughness and form accuracy with cutting conditions(the Feed rate, the Depth of cut and the Cutting speed). the Millimeter-Wave Interferometer System ellipse mirror had been machined foundational precision machining characteristics of aluminum.
밀리미터파 간섭계용 타원 반사경의 공구 변화에 따른 고속절삭 특성 연구
이상용(Sang-Yong Lee),김건희(Geon-Hee Kim),김효식(Hyo-Sik Kim),양순철(Soon-Cheol Yang),홍창덕(Chang-Deoc Hong),조병무(Byung-Moo Cho),원종호(Jong-Ho Won) 한국기계가공학회 2007 한국기계가공학회지 Vol.6 No.4
This study aims to find the optimal cutting conditions, when ellipse mirrors consisted Aluminum alloy were made it the Millimeter-Wave Interferometer System mirror with several tools on the High-Speed Machine. Machining technique for precision machining characteristics of ellipse mirrors consisted Al6061 matter by Ball endmill is reported in this paper., Results of machining on the High-Speed Machine(using NCD(Natural Crystalline diamond), WC and coated TiAlN Ø6㎜ ball endrnill tool) had measurement of surface roughness and form accuracy with cutting conditions(the Feed rate, the Depth of cut and the Cutting speed). the Millimeter-Wave Interferometer System ellipse mirror had been machined foundational precision machining characteristics of aluminum.
Low CBN 코팅공구의 SCM440 선삭시 절삭력변화에 관한 연구
방홍인(Hong-In Bang),김태영(Tea-Young Kim),오성훈(Sung-Hoon Oh) 한국기계가공학회 2013 한국기계가공학회지 Vol.12 No.1
In recent years, high hardness steel is used for most of the material in many areas including aircraft, nuclear power, space exploration and automotive parts. Low CBN tools are widely used in industrial field which can effectively process high hardness steel of HRC 45 or harder. The results of this study demonstrated, when high hardness steel, SCM440 is turned with Low CBN tools coated with TiN and TiAlN coatings respectively, that both the thrust force and cutting force tends to increase with more increase in cutting force than thrust force, as the feed rate increases at constant cutting speed. In addition, the size of the cutting force and thrust force does not change with the increased cutting speed at the same feed rate, but the tool life is reduced if the cutting speed is increased to shorten the machining time. Therefore, it is recommended to limit the cutting speed at 250 m/min maximum or less. Furthermore, comparing the cutting force of the three tools at the same cutting condition, Tin coating tool showed the smallest cutting force and Low CBN was the next, and the TiAlN coating tools showed the largest cutting force.