한국생산제조학회 학술지 영문 홈페이지

Current Issue

Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 29 , No. 3

[ Papers ]
Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 29, No. 3, pp.170-175
Abbreviation: J. Korean Soc. Manuf. Technol. Eng.
ISSN: 2508-5107 (Online)
Print publication date 15 Jun 2020
Received 26 Mar 2020 Revised 21 May 2020 Accepted 29 May 2020
DOI: https://doi.org/10.7735/ksmte.2020.29.3.170

임계 런아웃이 표면 거칠기와 요철의 평균 간격에 미치는 영향
김수진a, * ; 김동현a, b

Influence of Critical Runout on Surface Roughness and Mean Width of Profile Elements
Su-Jin Kima, * ; Dong-Hyun Kima, b
aSchool of Mechanical and Aerospace Engineering, Gyeongsang National University
bGyeongbuk Research Institute of Vehicle Embedded Technology
Correspondence to : *Tel.: +82-55-772-1636 E-mail address: sujinkim@gnu.ac.kr (Su-Jin Kim).

Funding Information ▼

Abstract

The runout of the end mill with two teeth affects the machined micro profile during side milling. In this research, the influence of critical runout on the surface roughness and mean width of profile elements is studied using a theoretical model, geometrical simulation, and experiment. The surface roughness values obtained using the theoretical model and via geometrical simulation were similar. However, they were lower than the value obtained experimentally because of the cutting mechanism. The average width of the profile element is equal to the feed per tooth when the runout is lower than the average critical runout; otherwise, it is double. Generally, runout increases the surface roughness. However, it does not affect the roughness if it is greater than the maximum critical runout.


Keywords: Critical runout, Surface roughness, Mean width of profile elements, Side milling, Machining

Acknowledgments

이 연구는 2017년도 산업핵심기술개발사업(과제번호 1004855)의 연구비 지원에 의하여 연구되었습니다.


References
1. Ehmann, K. F., Hong, M. S., 1994, A Generalized Model of the Surface Generation Process in Metal Cutting, CIRP Annals-Manufacturing Technology, 43:1 483-486.
2. Rivière-Lorphèvre, E., Filippi, E., 2009, Mechanistic Cutting Force Model Parameters Evaluation in Milling Taking Cutter Radial Runout into Account, The International Journal of Advanced Manufacturing Technology, 45 8-15.
3. Yang, Y., Zhang, W. H., Wan, M., 2011, Effect of Cutter Runout on Process Geometry and Forces in Peripheral Milling of Curved Surfaces With Variable Curvature, International Journal of Machine Tools and Manufacture, 51:5 420-427.
4. Cho, H. G., Kim, J. D., Yoon, M. C., 2011, Cutting Force Modelling in End-milling Considering Runout, Korean Society of Manufacturing Technology Engineers, 20:3 225-231.
5. Baek, D. K., Ko, T. J., Kim, H. S., 2001, Optimization of Feedrate in a Face Milling Operation Using a Surface Roughness Model, International journal of machine tools and manufacture, 41:3 451-462.
6. Franco, P., Estrems, M., Faura, F., 2004, Influence of Radial and Axial Runouts on Surface Roughness in Face Milling with Round Insert Cutting Tools, International Journal of Machine Tools and Manufacture, 44:15 1555-1565.
7. Schmitz, T. L., Couey, J., Marsh, E., Mauntler, N., Hughes, D., 2007, Runout Effects in Milling: Surface Finish, Surface Location Error, and Stability, International Journal of Machine Tools and Manufacture, 47:5 841-851.
8. Kim, B. K., Park, H. B., Lee, D. W., Kim, J. S., Jung, Y. H., 1999, A Study on Evaluation of Machinability using Cutter Runout in Ball-end Milling, Journal of the Korean Society for Precision Engineering, 16:10 35-44.
9. Kim, T. M., Je, S. U., Lee, H. S., Chu, C. N., 2006, High Speed Machining Considering Efficient Manual Finishing Part Ⅰ: Phase Shift and Runout Affecting Surface Integrity, Journal of the Korean Society for Precision Engineering, 23:12 30-37.
10. Hwang, Y. K., Lee, C. M., 2006, A Study on the Spindle Run-out Effects on Cutter Mark and Surface Roughness, Trans. of the Korean Society of Machine Tool Engineers, 5 189-194.

Su-Jin Kim

Professor in the School of Mechanical and Aerospace Engineering, Gyeongsang National University.His research interest is smart manufacturing.

E-mail: sujinkim@gnu.ac.kr

Dong-Hyun Kim

Researcher of APCS Technology Center, Gyeongbuk Research Institute of Vehicle Embedded Technology.

E-mail: dhkim@givet.re.kr