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Machining Accuracy Improvement by On Machine Part Measurement and Error Compensation  

최진필 (연세대학교 기계공학과 대학원)
민병권 (연세대학교 기계전자공학부)
이상조 (연세대학교 기계전자공학부)
Publication Information
Journal of the Korean Society for Precision Engineering / v.20, no.12, 2003 , pp. 34-41 More about this Journal
Abstract
This paper suggests a methodology fur improving the machining accuracy by compensating for the machining errors based on on-machine measurement process. Probing errors and machine tool errors included in the measurement data were calibrated or compensated to obtain the actual machining errors. Machine tool errors were modeled in forward and backward directions according to the axis movement direction to consider the effects of backlash errors on the measurement data, and model parameters were determined by measuring a cube array artifact. A rectangular workpiece was machined and then measured with a touch probe as a verification experiment. Machining experiments showed that the machining errors were reduced to within the designated tolerance after compensating for the actual machining errors by modifying the original footpath for the next-step machining.
Keywords
OMM; Touch Probe; Error Model; Backlash Error; Error Compensation;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Kim, S.H., Kim, D.H., 'On-the-Machine Measurement System,' J. of the KSPE, Vol. 18, No. 16, pp. 9-18, 2001   과학기술학회마을
2 Cho, M.W., Lee, S.H., Seo, T.I., 'On-Machine Measurement of Sculptured Surfaces Based on CAD/CAM/CAI Integration: 1. Measurement Error Modeling,' J. of the KSPE, Vol. 16, No. 10, pp. 172-181   과학기술학회마을
3 Lee, S.J., Kim, S.H., Kim, O.H., 'The Analysis of Measuring Error in OMM System,' J. of the KSPE, Vol. 15, No. 5, pp. 34-42, 1998   과학기술학회마을
4 Mou, J., Liu, C.R., 'A methodology for machine tools error correction using reference parts,' Int. J. Computer Integrated Manufacturing, Vol. 8, No. 1, pp. 64-77, 1995   DOI   ScienceOn
5 ISO 10791-7,'Test Conditions for machining centers-Part 7: Accuracy of a finished part,' International Standard Organization, 1998
6 Kim, K.D., Chung, S.C., 'Design and Analysis of $2{\frac{1}{2}}$ Dimensional On-the-Machine Measuring and Inspection System Using Touch Trigger Probes' J. of KSME, Vol.23, No.1, pp.37-46, 1999
7 Choi, J.P., Lee, S.J., 'Quick Assessment of Positioning Errors fo Machine Tool Using a Cube Array Artifact and a Touch Probe,' The 1st Korea-Japan Conference on Positioning Technology (CPT2002), pp.230-234, KIMM, Korea, 2002
8 Park, J.W., Ko, T.J., 'OMM system based on CAD model,' J. of the KSPE, Vol. 18, No. 6, pp. 37-42   과학기술학회마을
9 Shen, Y.L., Duffie, N.A., 'Uncertainties in the Acquisition and Utilization of Coordinate Frames in Manufacturing Systems,' Annals of the CIRP, Vol.40, No.1, pp.527-530, 1991   ScienceOn
10 Yang, M.Y., Lee, J.J., 'Measuremnet and prediction of thermal errors of a CNC machining center using two spherical balls,' J. of Materials Processing Technology, Vol.75, pp.180-189, 1998   DOI   ScienceOn