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Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 32 , No. 4

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Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 32, No. 4, pp. 189-197
Abbreviation: J. Korean Soc. Manuf. Technol. Eng.
ISSN: 2508-5107 (Online)
Print publication date 15 Aug 2023
Received 08 Jun 2023 Revised 08 Jul 2023 Accepted 02 Aug 2023
DOI: https://doi.org/10.7735/ksmte.2023.32.4.189
입력성형기법 적용을 통한 머시닝센터의 가공 정밀도 개선에 관한 연구
고강호^a ; 임동욱^b ; 홍성욱^c^{, *}



A Study on the Improvement of Machining Precision by Applying Input Shaping Method to Machining Center
Kang-Ho Ko^a ; Dong-Wook Lim^b ; Seong-Wook Hong^c^{, *}
aDepatment of Mechanical System, Gumi Campus of Korea Polytechnic
bDepartment of Mechanical Engineering, Inha University
cDepartment of Mechanical System Engineering, Kumoh National Institute of Technology
Correspondence to : ^*Tel.: +82-54-478-7344 E-mail address: swhong@kumoh.ac.kr (Seong-Wook Hong).

Abstract

Recently, machining centers have been actively adopting high-speed positioning systems to enhance operational efficiency and productivity. This study focuses on applying input shaping techniques to a machining center to improve the machining precision. Simulations were performed using a minimal impulse input shaper on a two-axis stage, considering its anisotropic characteristics. A comparative analysis was performed to assess the effectiveness of input shaping by varying the material, feed rate, reduction ratio, and depth of cut. The machined specimens were measured using a digital microscope, surface roughness tester, and an image dimension measurement device. Successful experiments were conducted to demonstrate the improved processing quality of the machining center during combined linear and circular cutting processes. Both the simulations and experiments confirmed the significant effectiveness of the proposed method in enhancing the machining precision of the machining center.


Keywords: Input shaping, Machining precision, Machining center, Multi-mode input shaper, Circular interpolation

References


1.	Jang, H. S., Kang, Y. S., Kwon, S. H., Jang, W. K., Seo, Y. H., Kim, B. H., 2022, AC Servo Motor and Ball Screw Type Feed Drive System Modeling, Proc. Korean. Soc. Precis. Eng. Spring Conf, 820.
2.	Jeong, W. Y., Jeong, H. I., Lee, C. M., 2021, Shape Optimization for Lightweight of the Metal 3D Printing Based Hybrid Machining Center, J. Korean Soc. Manuf. Proc. Eng., 20:2 80-85.
3.	Kwon, S. W., Azizjon, K ., Kim, J. S., Hong, S. W., 2018, Development of Motion Code Generator for Application of Input Shaping Method, Proc. Korean. Soc. Precis. Eng. Spring Conf., 354.
4.	Hong, S. W., 2014, Input Shaping Method for Mechanical Vibration Control, Chaosbook, Republic of Korea.
5.	Kim, B. S., 2011, Input Shaping for Servo Control of Machine Tools, J. Korean Soc. Prec.Eng., 28:9 1011-1017.
6.	Sim, J. U., Choi, P. K., Kwon, S. W., Hong, S. W., 2021, A Study on the Compensation of Positioning Error in Circular Interpolation with Input Shaping Method for 2-axis Positioning System, Proc. J. Korean. Soc. Precis. Eng. Autumn Conf., 374.
7.	Ko, K. H., Hong, S.W., 2021, A Study on Reduction of Residual Vibration in the Machining Center Through Input Shaping Method, Proc. Korean Soc. Manuf. Technol. Eng. Conf., 186.
8.	Piao, M. G., Shah, U. H., Jeon, J. Y., Hong, K. S., 2014, Input Shaping Control of a Refueling System Operating in Water, J. Inst. Control. Robot. Syst., 20:4 402-407.
9.	Sim, J. U., 2022, Study on Input Shaping of Anisotropic 2-axis Positioning System in Circular Interpolation, Master Thesis, Kumoh National Institute of Technology, Republic of Korea.
*10.*	Choi, P. K., 2021, A Study on Application of Input Shaping Method to Circular Interpolation, Master Thesis, Kumoh National Institute of Technology, Republic of Korea.
*11.*	Ko, K. H., Sim, J. U., Hong, S. W., 2022 Application of Input Shaping to a CNC Laser Processing Machine to Enhance Processing Precision, J. Korean Soc. Manuf. Technol. Eng., 31:5 346-352.
*12.*	Park, S. W., Hong, S. W., Danielson, J., 2009, A New Design Method for Multi-mode Input Shapers to Eliminate Residual Vibrations in Dynamic Systems, J. Korean. Soc. Precis. Eng., 26:4 100-106.
*13.*	Sim, J. U., Choi, P. K., Kwon, S. W., Hong, S. W., 2022, Improved Input Shaping Method for Circular Interpolation of a 2-Axis Positioning System, J. Korean. Soc. Precis. Eng., 39:4 283-289.

Kang-Ho Ko

Professor in the Department of Mechanical System, Korea Polytechnics. His research interest is Vibration Control and Precision Engineering.

E-mail: kkhmachine@kopo.ac.kr

Dong-Wook Lim

He received Doctor Degrees in Mechanical Engineering from Inha University in 2023. His research interests include Laser Machining and Micro Machining.

E-mail: 22191319@inha.edu

Seong-Wook Hong

Professor in the Department of Mechanical System Engineering, Kumoh National Institute of Technology. His research interests include Command Shaping, Bearing Modeling and Analysis, and Structural Dynamics Analysis.

E-mail: swhong@kumoh.ac.kr