[ Article ]

Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 32, No. 4, pp.189-197

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

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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