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머시닝센터의 기계능력지수 평가 및 기계특성과의 분석

Machine Capability Index Evaluation of Machining Center and Comparative Analysis with Machine Property

  • 투고 : 2012.08.16
  • 심사 : 2013.03.07
  • 발행 : 2013.06.15

초록

Recently, there is an increasing need to produce more precise products with small deviations from defined target values. Machine capability is the ability of a machine tool to produce parts within a tolerance interval. Capability indices are a statistical way of describing how well a product is machined compared to defined target values and tolerances. Today, there is no standardized way to acquire a machine capability value. This paper describes a method for evaluating machine capability indices in machining centers. After the machining of specimens, the straightness, roundness, and positioning accuracy were measured by using CMM (coordinate measuring machine). These measured values and defined tolerances were used to evaluate the machine capability indices. It will be useful for the industry to have standardized ways to choose and calculate machine capability indices.

키워드

참고문헌

  1. Shin, H. J., Lee, J. J., 2000, A Study on Development of Process Incapability Index Model Including Gage R&R, The Korean Institute of Plant Engineering 5 35-48.
  2. Ko, S. G., Hwang, J. M., Kim, Y., S., 2001, Practical Guideline of Process Capability Indices, The Korean Society for Quality Management 2:1 23-33.
  3. Lee, S. H., 2008, Engineering Statistic analysis using Minitab, Eretec, Korea.
  4. Lee, D. K., 1999, A New Multivariate Process Capability Index, Journal Research of Kum-Oh National University of Technology 20 153-160.
  5. Kwon, N., K., 2002, A Proposed Process Capability Index for Non-normal Process, Master Thesis, Kum-Oh National Institute of Technology, Korea.
  6. Stadlbauer, P., 2007, Statistic / destructive-nondestructive testing, A ThyssenKrupp Technologies Company.
  7. Eretec Minitab Business Team, 2005, New Minitab Working Completion, Eretec, Korea.
  8. Larsson, A., 2002, Capability in Machining Systems, A Licentiate Thesis, Royal Institute of Technology, Sweden.
  9. KS, 2007, Test conditions for machining centres - Part 7 : Accuracy of a finished test piece, KS B ISO 10791-7 : 2007, Korea Standard Association.
  10. Choi, H. S., 2006, New Tolerance theory, Sungandang, Korea.
  11. Kim, S. S., 1999, A Study on Measuring and Evaluation Methods of Straightness of Machining Centers, Journal of The Institute Research of Mechanical Technology 2:2 59-74.
  12. Kang, J. G., Rhee, S. Y., 1993, A Study of the Evaluation of Circularity by the Minimum Zone Principle, Center for Advanced Materials of Kyung-Nam University 3 229-238.
  13. Jo, S. H., 2007, Application Measurement Practice, Gijeon, Korea.
  14. Dukin, 1999, Geometrical Tolerance(GD & T), Dukin Inc, Korea.