A New Approach to Thermally Induced Volumetric Error Compensation
A traditional model for thermally induced volumetric error of a three-axis machine tool requires measurement of 21 geometric error components and their variation data at different temperatures. Collecting these data is difficult and time consuming. This paper describes the development of a new model...
| Main Authors: | , |
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| Format: | Journal Article |
| Published: |
Springer London
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/10177 |
| _version_ | 1848746160319102976 |
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| author | Lu, Yuxia Islam, Mohammad Nazrul |
| author_facet | Lu, Yuxia Islam, Mohammad Nazrul |
| author_sort | Lu, Yuxia |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | A traditional model for thermally induced volumetric error of a three-axis machine tool requires measurement of 21 geometric error components and their variation data at different temperatures. Collecting these data is difficult and time consuming. This paper describes the development of a new model for calculating thermally induced volumetric error based on the variation of three error components only. The considered error components are the three axial positioning errors of a machine tool. They are modelled as functions of ball-screw nut temperature and travel distance to predict positioning errors when the thermal condition of the machine tool has changed due to continuous usage. It is assumed that the other 18 error components remain identical to the pre-calibrated cold start values. This assumption is justified by the fact that the machine tool’s thermal status significantly affects three axial positioning errors that dominate machining errors for a machine tool after its continuous use. To demonstrate the effectiveness of the proposed model two types of machining jobs, milling and drilling, on a three-axis horizontal CNC machining centre are simulated and the machined part profiles are predicted. The results show that the thermally induced volumetric error was reduced from 115.40 to 45.37 μm for the milled surface, and the maximum distance error between drilled holes for the drilling operation was reduced from 38.69 to −0.14 μm after compensation. |
| first_indexed | 2025-11-14T06:28:50Z |
| format | Journal Article |
| id | curtin-20.500.11937-10177 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:28:50Z |
| publishDate | 2011 |
| publisher | Springer London |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-101772017-09-13T15:33:38Z A New Approach to Thermally Induced Volumetric Error Compensation Lu, Yuxia Islam, Mohammad Nazrul Thermally induced volumetric error – Horizontal CNC machining centre – Positioning error – Machining accuracy – Ball-screw nut temperature A traditional model for thermally induced volumetric error of a three-axis machine tool requires measurement of 21 geometric error components and their variation data at different temperatures. Collecting these data is difficult and time consuming. This paper describes the development of a new model for calculating thermally induced volumetric error based on the variation of three error components only. The considered error components are the three axial positioning errors of a machine tool. They are modelled as functions of ball-screw nut temperature and travel distance to predict positioning errors when the thermal condition of the machine tool has changed due to continuous usage. It is assumed that the other 18 error components remain identical to the pre-calibrated cold start values. This assumption is justified by the fact that the machine tool’s thermal status significantly affects three axial positioning errors that dominate machining errors for a machine tool after its continuous use. To demonstrate the effectiveness of the proposed model two types of machining jobs, milling and drilling, on a three-axis horizontal CNC machining centre are simulated and the machined part profiles are predicted. The results show that the thermally induced volumetric error was reduced from 115.40 to 45.37 μm for the milled surface, and the maximum distance error between drilled holes for the drilling operation was reduced from 38.69 to −0.14 μm after compensation. 2011 Journal Article http://hdl.handle.net/20.500.11937/10177 10.1007/s00170-011-3849-6 Springer London restricted |
| spellingShingle | Thermally induced volumetric error – Horizontal CNC machining centre – Positioning error – Machining accuracy – Ball-screw nut temperature Lu, Yuxia Islam, Mohammad Nazrul A New Approach to Thermally Induced Volumetric Error Compensation |
| title | A New Approach to Thermally Induced Volumetric Error Compensation |
| title_full | A New Approach to Thermally Induced Volumetric Error Compensation |
| title_fullStr | A New Approach to Thermally Induced Volumetric Error Compensation |
| title_full_unstemmed | A New Approach to Thermally Induced Volumetric Error Compensation |
| title_short | A New Approach to Thermally Induced Volumetric Error Compensation |
| title_sort | new approach to thermally induced volumetric error compensation |
| topic | Thermally induced volumetric error – Horizontal CNC machining centre – Positioning error – Machining accuracy – Ball-screw nut temperature |
| url | http://hdl.handle.net/20.500.11937/10177 |