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한국생산제조학회 학술지 영문 홈페이지
[ Technical Papers ]
Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 31, No. 5, pp.346-352
ISSN: 2508-5107 (Online)
Print publication date 15 Oct 2022
Received 22 Aug 2022 Revised 02 Oct 2022 Accepted 04 Oct 2022
DOI: https://doi.org/10.7735/ksmte.2022.31.5.346

CNC 레이저 가공기의 가공 정밀도 개선을 위한 입력성형 적용

고강호a ; 심진욱b ; 홍성욱c, *
Application of Input Shaping to a CNC Laser Processing Machine to Enhance Processing Precision
Kang Ho Koa ; Jin Uk Simb ; Seong-Wook Hongc, *
aMechanical Engineering, Inha University
bMechanical Engineering, Graduate School, Kumoh National Institute of Technology
cMechanical 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

This study presents an application of input shaping to a CNC laser processing machine to enhance performance. An effective command generation method is developed to reduce tracking errors and vibrations during the XY stage of laser processing . This study then conducts simulations with an analytical model of the stage in which anisotropic characteristics are considered. Simulation results revealed that two-mode input shapers should be employed during command generation to reduce tracking errors caused by input shaping. Experiments were successfully performed to show the enhanced processing quality with the CNC laser processing machine on two typical laser marking processes: linear marking and a combined process of linear and circular marking. The simulations and experiments showed that the proposed command generation method is very useful for improving the processing precision of the CNC laser processing machine.

Keywords:

Laser processing machine, Input shaping, Residual vibration, Tracking error, Processing precision, Multi-mode input shaper

References

  • Naresh, Khatak, P., 2022, Laser Cutting Technique: A Literature Review, Materials Today: Proceedings, 56:5, 2484-2489. [https://doi.org/10.1016/j.matpr.2021.08.250]
  • Kim, D. H., 2016, Laser Processing, 3rd Ed (2016), Kyungmoon-sa, Republic of Korea, < https://www.kyungmoon.com/shop/item.php?it_id=1652670471, >.
  • Lee, J. H., Shin, D. S., Suh, J., Cho, H. Y., Kim, K. W., 2008, Trends of Leaser Integrated Machine, J. Korean. Soc. Precis. Eng., 25:9 20-26.
  • Singhose, W., 2009, Command Shaping for Flexible Systems: A Review of the First 50 Years, Int. J. Precis. Eng. Manuf., 10:4 153-168. [https://doi.org/10.1007/s12541-009-0084-2]
  • Hong, S. W., 2014, Input Shaping Method for Mechanical Vibration Control, Chaosbook, Republic of Korea, <http://www.chaosbook.co.kr/system/bookread.asp?name=&isbn=9788998338503, >.
  • Singhose, W., Kim, D., Kenison, M., 2008, Input Shaping Control of Double-pendulum Bridge Crane Oscillations, J. Dyn. Syst. Meas. Control-Trans. ASME, 130:3 034504. [https://doi.org/10.1115/1.2907363]
  • Park, S.W., Hong, S.W., 2011, Application of Input Shaping Method to Industrial Cranes, J. Korean. Soc. Precis. Eng., 28:9 1032-1039.
  • Maghsoudi, M. J., Mohamed, Z., Sudin, S., Buyamin, S., Jaafar, H. I., Ahmad, S. M., 2017, An Improved Input Shaping Design for an Efficient Sway Control of a Nonlinear 3D Overhead Crane with Friction, Mech. Syst. Signal Proc., 92 364-378. [https://doi.org/10.1016/j.ymssp.2017.01.036]
  • Mar, R., Goyal, A., Nguyen, V., Yang, T., Singhose, W., 2017, Combined Input Shaping and Feedback Control for Double-pendulum Systems, Mech. Syst. Signal Proc., 85 267-277. [https://doi.org/10.1016/j.ymssp.2016.08.012]
  • Jang, J. W., Park, S. W., Hong, S. W., 2008, Command Generation Method for High-speed and Precise Positioning of Positioning Stage, J. Korean. Soc. Precis. Eng., 25:10 122-129.
  • Park, S. W., Hong, S. W., Choi, H. S., Jang, J. W., 2008, Dynamic Modeling and Input Shaping Control of a Positioning Stage, J. Korean Soc. Manuf. Technol. Eng., 17:2 83-89.
  • Park, A. Y., Lim, J. G., Hong, S. W., 2010, Modeling and Countermeasure for Positioning Stage base Vibration, J. Korean Soc. Manuf. Technol. Eng., 19:4 476-484.
  • Newman, D., Hong, S. W., Vaughan, J. E.., 2018, The Design of Input Shapers Which Eliminate Nonzero Initial Conditions, J. Dyn. Syst. Meas. Control-Trans. ASME,140 101005. [https://doi.org/10.1115/1.4039668]
  • Newman, D., Hong, S. W., Vaughan, J. E., 2018, Eliminating Nonzero Initial States in Flexible Systems through Specified Insensitivity Input Shaping, 2018 Annual American Control Conference (ACC), 3374-3379. [https://doi.org/10.23919/ACC.2018.8431862]
  • Kobilov, A., Hong, S. W., 2020, Delay-time Adjustable Input Shaping Method for Positioning Systems Subject to Repetitive Motion, J. Korean. Soc. Precis. Eng., 37:1 25-34. [https://doi.org/10.7736/JKSPE.019.104]
  • Kasprowiak, M., Parus, A., Hoffmann, M., 2022, Vibration Suppression with Use of Input Shaping Control in Machining, Sensors, 22:6 2186. [https://doi.org/10.3390/s22062186]
  • Singhose, W. E., Singer, N. C., 1996, Effects of Input Shaping on Two-dimensional Trajectory Following, IEEE Trans. Robot. Autom., 12:6 881-887. [https://doi.org/10.1109/70.544771]
  • Peláez, G., Pelaez, Gu., Perez, J. M., Vizán, A., Bautista. E., 2005, Input Shaping Reference Commands for Trajectory Following Cartesian Machines, Control Eng. Practice, 13:8 941-958. [https://doi.org/10.1016/j.conengprac.2004.09.011]
  • Altintas, Y., Khoshdarreg, M. R., 2012, Contour Error Control of CNC Machine Tools with Vibration Avoidance, CIRP Ann-Manuf. Technol., 61:1 335-338. [https://doi.org/10.1016/j.cirp.2012.03.132]
  • Zhao, P., Zhou, Y., Zhou, R., 2018, A New Trajectory Optimizing Method using Input Shaping Principles, Shock Vib., 2018 4173253. [https://doi.org/10.1155/2018/4173253]
  • 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. [https://doi.org/10.7736/JKSPE.022.005]
  • Kim, B. C., 2020, Development of 5-axis Laser Processing System using 3D Path Control Algorithm: Laser Polishing of Mold Steel and Superhydrophobic Surface Fabrication, Doctoral Dissertation, Inha University, Republic of Korea.
  • 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.
Kang Ho Ko

Professor in the Department of Mechanical System, Korea Polytechnics. His research interest is vibration control and precision machining.

E-mail: kkhmachine@kopo.ac.kr

Jin Uk Sim

M.E. student in the Department of Mechanical Engineering, Kumoh National Institute of Technology, Korea. His research interest is vibration control and command shaping.

E-mail: sju2056@naver.com

Seong-Wook Hong

Professor in the Department of Mechanical System Engineering, Kumoh National Institute of Technology, Korea. His research interests include command shaping, bearing modeling and analysis, and structural dynamics analysis.

E-mail: swhong@kumoh.ac.kr