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Error Analysis and Compensation for the Volumetric Errors of a Vertical Machining Center Using Hemispherical Helix Ball Bar Test  

Yang, Seung-Han (경북대학교 기계공학부)
Kim, Ki-Hoon (경북대학교 기계공학부)
Park, YongKuk (대구가톨릭 대학교 기계자동차공학부)
Publication Information
Journal of the Korean Society for Precision Engineering / v.19, no.9, 2002 , pp. 34-40 More about this Journal
Abstract
Machining accuracy is affected by quasi-static errors of machining center. Since machine errors have a direct influence upon both the surface finish and geometric shape of the finished workpiece, it is very important to measure the machine errors and to compensate these errors. The laser measurement method for identifying geometric errors of machine tool has the disadvantages such as high cost, long calibration time and usage of volumetric error synthesis model. Accordingly, this paper deals with analysis of the geometric errors of a machine tool using ball bar test without using complicated error synthesis model. Statistical analysis method was adopted in this paper for deriving geometric errors using hemispherical helix ball bar test. As a result of experiment, geometric errors of the vertical machining center are compensated by 88%.
Keywords
Volumetric error synthesis model; Error compensation; Hemispherical helix ball bar test;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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