한국생산제조학회지 (Journal of the Korean Society of Manufacturing Technology Engineers)

  • 제22권3호
  • /
  • Pages.408-413
  • /
  • 2013
  • /
  • 2508-5093(pISSN)
  • /
  • 2508-5107(eISSN)
한국생산제조학회 (The Korean Society of Manufacturing Technology Engineers)
권호 표지
DOI QR코드

DOI QR Code

대면적 가공물의 마이크로 그루빙에서 고속 절삭 깊이 제어를 통한 미세형상의 정밀도 향상

Improvement of Form Accuracy of Micro-Features on Thin, Large-area Plate using Fast Depth Adjustment in Micro-grooving

  • Kang, Dong Bae (Intelligent Control and Automation in the School of Mechanical Engineering, Pusan National University) ;
  • Son, Seong Min (School of Digital Mechanics, Ulsan College) ;
  • Lee, Hyo Ryeol (Intelligent Control and Automation in the School of Mechanical Engineering, Pusan National University) ;
  • Ahn, Jung Hwan (School of Mechanical Engineering, Pusan National University and ERC/NSDM)
  • 투고 : 2013.04.04
  • 심사 : 2013.05.08
  • 발행 : 2013.06.15
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Micro-features such as grooves and lenses, which perform optical functions in flat displays, should be manufactured with a good form accuracy because this is directly related to their optical performance. As the size of the display increases, it is very difficult to maintain a high relative accuracy because of the inherent geometric errors such as the waviness of a large-area plate. In this paper, the optical effect of these geometric errors is investigated, and surface-referenced micro-grooving to measure and compensate for such geometric errors on line is proposed to improve the form accuracy of the micro-grooves. A PZT-based fast depth adjustment servo system is implemented in the tool holder to maintain a uniform groove depth in reference to the wavy surface. Through experiments, the proposed method is shown to be an efficient way to produce high-quality micro- grooves on a wavy die surface.

키워드

참고문헌

  1. Yandayan, T., Burdekin, M., 1996, In-process dimensional measurement and control of workpiece accuracy, International Journal of Machine tools and manufacture, 37:10 1423-1439.
  2. Ramesh, R., Mannan, M. A., Poo, A. N., 2000, Error compensation in machine tools - a review Part 1. Geometric, cutting-force induced and fixture-dependent errors, International Journal of Machine Tools and manufacture, 40 1235-1256. https://doi.org/10.1016/S0890-6955(00)00009-2
  3. Uda, Y., Kohno, T., Yazama, T., 1996, In-process measurement and workpiece-referred form accuracy control system (WORFAC): application to cylindrical turning using an ordinary lathe, Precision Engineering, 18:1 50-55. https://doi.org/10.1016/0141-6359(95)00035-6
  4. Li, Chen-Jung., Fang, Yi-Chin., Chu, Wei-Tang., Cheng, Ming-Chia., 2008, Optimization of Light Guide Plate with Micro structures for Extra Light Modern Backlight Module, Japanese Journal of Applied Physics, 47:8 6683-6687. https://doi.org/10.1143/JJAP.47.6683
  5. Elfizy, A. T., Bone, G. M., Elbestawi, M. A. 2005, Design and control of a dual-stage feed drive International Journal of Machine Tools and Manufacture, 45 153-165. https://doi.org/10.1016/j.ijmachtools.2004.07.008
  6. Oh, H. S., Lee, S. J., Choi, S. C., Park, W. J., Lee, D. W., 2007, Behavioral Characteristics of Nano-Stages According to Hinge Structure, Transactions of the Korean Society of Machine Tool Engineers, 16:3 23-30.
  7. Ryabov, O., Mori, K., Kasahima, N., 1998, Laser displacement meter application for milling diagnostics, Optics and Lasers in Engineering, 30 251-263.
  8. Dornfeld, D., Min S., Takeuchi, Y., 2006, Recent Advances in Mechanical Micromachining, Annals of CIRP., 55:2 745-768. https://doi.org/10.1016/j.cirp.2006.10.006