Abstract
Machining accuracy is directly influenced by the quasi-static errors of a machine tool. Since machine errors have a direct effect upon both the surface finish and geometric shape of the finished workpiece, it is imperative to measure the machine errors and to compensate for them. A laser measurement system to identify geometric errors of a machine tool has disadvantages, such as a high cost, a long calibration time and the usage of a volumetric error synthesis model. In this study, we proposed a novel analysis of the geometric errors of a machine tool using a ball bar test without using a complicated error synthesis model. Also, a statistical analysis method was employed to derive geometric errors using a hemispherical helix ball bar test. According to the experimental result, we observed that geometric errors of the vertical machining centre were compensated by 88%.
Original language | English |
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Pages (from-to) | 495-500 |
Number of pages | 6 |
Journal | International Journal of Advanced Manufacturing Technology |
Volume | 23 |
Issue number | 7-8 |
DOIs | |
State | Published - 2004 |
Keywords
- Error compensation
- Hemispherical helix ball bar test
- Machine tool errors
- Regression analysis
- Volumetric error synthesis model