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タイトル: Prediction and compensation of machining geometric errors of five-axis machining centers with kinematic errors
著者: Uddin, M. Sharif
Ibaraki, Soichi  kyouindb  KAKEN_id
Matsubara, Atsushi  kyouindb  KAKEN_id
Matsushita, Tetsuya
著者名の別形: 茨木, 創一
キーワード: Five-axis machining center
Kinematic errors
DBB method
Machining geometric errors
The cone frustum workpiece
Error compensation
発行日: Apr-2009
出版者: Elsevier
引用: M. Sharif Uddin, Soichi Ibaraki, Atsushi Matsubara, Tetsuya Matsushita, "Prediction and compensation of machining geometric errors of five-axis machining centers with kinematic errors," Precision Engineering, 33(2), pp. 194-201, 2009.
誌名: Precision Engineering
巻: 33
号: 2
開始ページ: 194
終了ページ: 201
抄録: Kinematic errors due to geometric inaccuracies in five-axis machining centers cause deviations in tool positions and orientation from commanded values, which consequently affect geometric accuracy of the machined surface. As is well known in the machine tool industry, machining of a cone frustum as specified in NAS979 standard is a widely accepted final performance test for five-axis machining centers. A critical issue with this machining test is, however, that the influence of the machine's error sources on the geometric accuracy of the machined cone frustum is not fully understood by machine tool builders and thus it is difficult to find causes of machining errors. To address this issue, this paper presents a simulator of machining geometric errors in five-axis machining by considering the effect of kinematic errors on the three-dimensional interference of the tool and the workpiece. Kinematic errors of a five-axis machining center with tilting rotary table type are first identified by a DBB method. Using an error model of the machining center with identified kinematic errors and considering location and geometry of the workpiece, machining geometric error with respect to the nominal geometry of the workpiece is predicted and evaluated. In an aim to improve geometric accuracy of the machined surface, an error compensation for tool position and orientation is also presented. Finally, as an example, the machining of a cone frustum by using a straight end mill, as described in the standard NAS979, is considered in case studies to experimentally verify the prediction and the compensation of machining geometric errors in five-axis machining.
著作権等: Copyright © 2008 Elsevier
この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。This is not the published version. Please cite only the published version.
URI: http://hdl.handle.net/2433/123362
DOI(出版社版): 10.1016/j.precisioneng.2008.06.001
出現コレクション:学術雑誌掲載論文等

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