DOI QR코드

DOI QR Code

Analysis of Tool and Workpiece Setup in v-Groove Micromachining

V-그루브 미세가공에서의 공구 및 공작물 셋업 해석

  • 조정우 (한국과학기술원 대학원 기계공학과) ;
  • 양민양 (한국과학기술원 기계공학과)
  • Published : 2006.08.01

Abstract

As the requirement of LCD products which are large screen and have high brightness increases, the role of light guide panel (LGP) of which micro-features diffuse the light uniformly on surface is getting important. In general, there are many errors in machining like machine tool errors process error, setup error and etc. The amount of setup error in general machining is not so big in comparison with the others, so it is mostly neglected. But, especially in v-groove micromachining, setup error has a significant effect on micro-features. Low quality product and high cost are resulted from setup error. In v-groove micromachining, to confirm the effect of setup error, it is identified and then setup error synthesis model is derived from analysis of tool and workpiece setup. In addition, to predict the micro-features affected by setup error and enhance the production efficiency, the setup condition satisfying the tolerance of micro-features is geometrically analyzed and presented.

Keywords

V-groove Micromachining;Tool Setup Error;Workpiece Setup Error;Setup Error Condition

References

  1. Ramesh, R., Mannan, M.A. and Poo, AN., 2000, 'Error Compensation in Machine Tools-a Review Part I: Geometric, Cutting-Force Induced and Fixture-Dependent Errors,' International Journal of Machine Tools & Manufacturing, Vol. 40, No. 9, pp. 1235-1256 https://doi.org/10.1016/S0890-6955(00)00009-2
  2. Ramesh, R., Mannan, M.A. and Poo, A.N., 2000, 'Error Compensation in Machine Tools -a Review Part II: Thermal Errors,' International Journal of Machine Tools & Manufacturing, Vol. 40, No. 9, pp. 1257-1284 https://doi.org/10.1016/S0890-6955(00)00010-9
  3. Srivastava, A.K., Veldhuis, S.C. and Elbestawit, M.A., 1995, 'Modeling Geometric and Thermal Errors in a Five-Axis CNC Machine Tool' International Journal of Machine Tools & Manufacturing, Vol. 35, No. 9, pp. 1321-1337 https://doi.org/10.1016/0890-6955(94)00048-O
  4. Okafor, A.C. and Ertekin, Yalcin M., 2000, ''Derivation of Machine Tool Error Models and Error Compensation Procedure for Three Axes Vertical Machining Center Using Rigid Body Kinematics,' International Journal of Machine Tools & Manufacturing, Vol. 40, No. 8, pp. 1199-1213 https://doi.org/10.1016/S0890-6955(99)00105-4
  5. Mir, Y.A., Mayer, J.R.R. and Fortin, C., 2002, 'Tool Path Error Prediction of a Five-Axis Machine Tool with Geometric Errors,' Proceedings of the Institution of Mechanical Engineers. Part B, Journal of engineering manufacture, Vol. 216, No. 5, pp. 697-712 https://doi.org/10.1243/0954405021520391
  6. Raksiri, C. and Parnichkun, M., 'Geometric and Force Errors Compensation in a 3-Axis CNC Milling Machine,' International Journal of Machine Tools & Manufacturing, Vol. 44, No. 12/13, pp. 1283-1291
  7. Park, K. T., Shin, Y,J. and Kang, B.S., 2004, 'Tool-Setup Measurement Technology of High Speed Precision Machining Tool,' Journal of Korean Society of Precision Engineering, Vol.2004, pp. 1066-1069
  8. Shreyes N.Melkote, 2005, 'Modeling of Workpiece Location Error Due to Fixture Geometric Error and Fixture-Workpiece Compliance,' Journal of Manufacturing Science and Engineering, Vol. 127 https://doi.org/10.1115/1.1828052