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CGI 주철 소재 극저온 밀링 공정 절삭성 분석 연구

Study on the Machinability of Cryogenic Milling for Compacted Graphite Iron

Journal of the Korean Society for Precision Engineering 2022;39(1):13-19.
Published online: January 1, 2022

1 경북대학교 정밀기계공학과

2 경북대학교 미래과학기술융합학과

3 경남대학교 기계공학부

1 Department of Precision Mechanical Engineering, Kyungpook National University

2 Department of Advanced Science and Technology Convergence, Kyungpook National University

3 School of Mechanical Engineering, Kyungnam University

#E-mail: doyoungk@kyungnam.ac.kr, TEL: +82-55-249-2685
• Received: August 4, 2021   • Revised: October 6, 2021   • Accepted: October 18, 2021

Copyright © The Korean Society for Precision Engineering

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Citations

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  • Tool life assessment of high strength cast iron alloys in dry face milling operations
    Alcione dos Reis, Gustavo Henrique Nazareno Fernandes, José Aécio Gomes de Sousa, Luiz Leroy Thomé Vaughan, Feliciano Cangue, Álisson Rocha Machado, Wilson Luiz Guesser
    Journal of Manufacturing Processes.2024; 111: 180.     CrossRef
  • Study on the Effect of MQL Spraying Condition on the Machinability in Titanium Cryogenic Machining
    Dong Min Kim, Heung Bum Park, Byung-Gook Kim, Hoon-Hee Lee, Young Ha Hwang, Ki Hyuk Kim, In Su Shin, Do Young Kim
    Journal of the Korean Society for Precision Engineering.2023; 40(4): 261.     CrossRef

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Study on the Machinability of Cryogenic Milling for Compacted Graphite Iron
J. Korean Soc. Precis. Eng.. 2022;39(1):13-19.   Published online January 1, 2022
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Study on the Machinability of Cryogenic Milling for Compacted Graphite Iron
J. Korean Soc. Precis. Eng.. 2022;39(1):13-19.   Published online January 1, 2022
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Study on the Machinability of Cryogenic Milling for Compacted Graphite Iron
Image Image Image Image Image Image Image Image
Fig. 1 Experimental setup
Fig. 2 Schematic diagram of cryogenic cooling condition
Fig. 3 Cutting force profiles under dry and internal condition in (a) FX, FY, and FZ, and in (b) P1, P2, and P3
Fig. 4 Comparisons of cutting forces under different cooling conditions
Fig. 5 Comparisons of surface roughness under different cooling conditions
Fig. 6 Schematic diagrams of CGI cutting mechanisms under (a) Dry condition, and (b) Cryogenic condition
Fig. 7 SEM images and EDS mapping results on the machined surface of work material under (a) Dry condition, and (b) Cryogenic condition, and SEM images on the machined surface of chips under (c) Dry condition, and (d) Cryogenic condition
Fig. 8 Oxygen content (Atomic percentage) on generated chips under different cooling conditions
Study on the Machinability of Cryogenic Milling for Compacted Graphite Iron
Work material Machining type Cooling condition Coolant Tool diameter [mm] Cutting speed [m/min] Radial depth [mm] Axial depth [mm] Feed per tooth [mm/tooth]
CGI450 Down milling Dry - 16 210 2, 4 1 0.1
Wet Oil-based coolant
Internal LN2
External LN2
Table 1 Experimental conditions