Automatic Error Compensation for Free-Form Surfaces by Using On-Machine Measurement Data
Currently, most computer numerical control (CNC) controllers lack the function needed to compensate machining errors for free-form surfaces. The objective of this research was to enhance the accuracy and precision of the machined free-form surfaces of a workpiece using the mirror compensation method...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2019-07-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/9/15/3073 |
| _version_ | 1811222531858759680 |
|---|---|
| author | Wei-chen Lee Yu-tzu Lee Ching-Chih Wei |
| author_facet | Wei-chen Lee Yu-tzu Lee Ching-Chih Wei |
| author_sort | Wei-chen Lee |
| collection | DOAJ |
| description | Currently, most computer numerical control (CNC) controllers lack the function needed to compensate machining errors for free-form surfaces. The objective of this research was to enhance the accuracy and precision of the machined free-form surfaces of a workpiece using the mirror compensation method with the on-measurement data. By mirroring the points measured after semi-finishing, a new free-form surface for finishing machining can be automatically reconstructed. The surface can then be used to generate the cutting tool path to reduce the errors during finishing machining. In this research, three different types of surfaces were used for evaluating the proposed method. The results show that the proposed method reduced the standard deviations of the three surface geometries by 61%, 61%, and 32%, respectively. We also evaluated the tool radius modification method commonly used in the industry for error compensation and found that there is no substantial reduction on standard deviation. Therefore, the effectiveness of the error compensation method proposed in this research is evident. |
| first_indexed | 2024-04-12T08:18:36Z |
| format | Article |
| id | doaj.art-2e6d6e24ec964a39b344587cc45aa5a8 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-04-12T08:18:36Z |
| publishDate | 2019-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-2e6d6e24ec964a39b344587cc45aa5a82022-12-22T03:40:42ZengMDPI AGApplied Sciences2076-34172019-07-01915307310.3390/app9153073app9153073Automatic Error Compensation for Free-Form Surfaces by Using On-Machine Measurement DataWei-chen Lee0Yu-tzu Lee1Ching-Chih Wei2Department of Mechanical Engineering, National Taiwan University of Science and Technology, Taipei 10607, TaiwanDepartment of Mechanical Engineering, National Taiwan University of Science and Technology, Taipei 10607, TaiwanDepartment of Mechanical Engineering, National Taiwan University of Science and Technology, Taipei 10607, TaiwanCurrently, most computer numerical control (CNC) controllers lack the function needed to compensate machining errors for free-form surfaces. The objective of this research was to enhance the accuracy and precision of the machined free-form surfaces of a workpiece using the mirror compensation method with the on-measurement data. By mirroring the points measured after semi-finishing, a new free-form surface for finishing machining can be automatically reconstructed. The surface can then be used to generate the cutting tool path to reduce the errors during finishing machining. In this research, three different types of surfaces were used for evaluating the proposed method. The results show that the proposed method reduced the standard deviations of the three surface geometries by 61%, 61%, and 32%, respectively. We also evaluated the tool radius modification method commonly used in the industry for error compensation and found that there is no substantial reduction on standard deviation. Therefore, the effectiveness of the error compensation method proposed in this research is evident.https://www.mdpi.com/2076-3417/9/15/3073error compensationfree-form surfaceon-machine measurementmirror compensation method |
| spellingShingle | Wei-chen Lee Yu-tzu Lee Ching-Chih Wei Automatic Error Compensation for Free-Form Surfaces by Using On-Machine Measurement Data Applied Sciences error compensation free-form surface on-machine measurement mirror compensation method |
| title | Automatic Error Compensation for Free-Form Surfaces by Using On-Machine Measurement Data |
| title_full | Automatic Error Compensation for Free-Form Surfaces by Using On-Machine Measurement Data |
| title_fullStr | Automatic Error Compensation for Free-Form Surfaces by Using On-Machine Measurement Data |
| title_full_unstemmed | Automatic Error Compensation for Free-Form Surfaces by Using On-Machine Measurement Data |
| title_short | Automatic Error Compensation for Free-Form Surfaces by Using On-Machine Measurement Data |
| title_sort | automatic error compensation for free form surfaces by using on machine measurement data |
| topic | error compensation free-form surface on-machine measurement mirror compensation method |
| url | https://www.mdpi.com/2076-3417/9/15/3073 |
| work_keys_str_mv | AT weichenlee automaticerrorcompensationforfreeformsurfacesbyusingonmachinemeasurementdata AT yutzulee automaticerrorcompensationforfreeformsurfacesbyusingonmachinemeasurementdata AT chingchihwei automaticerrorcompensationforfreeformsurfacesbyusingonmachinemeasurementdata |