Robust Modeling and Real Time Compensation for the Thermal Error on a Large Number of CNC Turning Centers

2004 ◽  
Vol 259-260 ◽  
pp. 756-760 ◽  
Author(s):  
Jian Guo Yang ◽  
Y.Q. Ren ◽  
Z.C. Du
Keyword(s):  
Real Time ◽  
Thermal Error ◽  
Robust Modeling ◽  
Cnc Turning ◽  
Cnc Turning Centers

An Integrated Modeling Approach for ANN-Based Real-Time Thermal Error Compensation on a CNC Turning Center

2013 ◽  
Vol 664 ◽  
pp. 907-915 ◽  
Author(s):  
Abderrazak El Ouafi ◽  
Michel Guillot ◽  
Noureddine Barka
Keyword(s):  
Real Time ◽  
Error Compensation ◽  
Thermal Error ◽  
Operating Conditions ◽  
Design Stage ◽  
Thermally Induced ◽  
Cnc Turning ◽  
Modeling Approach ◽  
Turning Center ◽  
Thermal Error Compensation

Thermally induced errors play a critical role in controlling the level of machining accuracy. They can represent a significant proportion of dimensional errors in produced parts. Since thermal errors cannot totally be eliminated at the design stage, active errors compensation appears to be the most economical and realistic solution. Accurate and efficient modeling of the thermally induced errors is an indispensable part of the error compensation process. This paper presents an integrated and comprehensive modeling approach for real-time thermal error compensation. The modeling process is based on multiple temperature measurements, Taguchi’s orthogonal arrays, artificial neural networks and various statistical tools to provide cost effective selection of appropriate temperature variables and modeling conditions as well as to achieve robust and accurate thermal error models. The experimental results on a CNC turning center confirm the feasibility and efficiency of the proposed approach and show that the resultant model can accurately predict the time-variant spindle thermal drift errors under various operating conditions. After compensation, the thermally induced spindle errors were reduced from 19m to less than 1 m. The proposed modeling optimization strategy can be effectively and advantageously used for real-time error compensation since it presents the benefit of straightforward application, reduced modeling time and uncertainty.

Thermal error optimization modeling and real-time compensation on a CNC turning center

2008 ◽  
Vol 207 (1-3) ◽  
pp. 172-179 ◽  
Author(s):  
Wu Hao ◽  
Zhang Hongtao ◽  
Guo Qianjian ◽  
Wang Xiushan ◽  
Yang Jianguo
Keyword(s):  
Real Time ◽  
Thermal Error ◽  
Optimization Modeling ◽  
Cnc Turning ◽  
Turning Center ◽  
Error Optimization

Real-time thermal error compensation method for robotic visual inspection system

2014 ◽  
Vol 75 (5-8) ◽  
pp. 933-946 ◽  
Author(s):  
Shibin Yin ◽  
Yin Guo ◽  
Yongjie Ren ◽  
Jigui Zhu ◽  
Shourui Yang ◽  
...  
Keyword(s):  
Real Time ◽  
Error Compensation ◽  
Visual Inspection ◽  
Thermal Error ◽  
Compensation Method ◽  
Inspection System ◽  
Thermal Error Compensation

Piezoelectric tool actuator for precision machining on conventional CNC turning centers

2003 ◽  
Vol 27 (4) ◽  
pp. 335-345 ◽  
Author(s):  
Andrew Woronko ◽  
Jin Huang ◽  
Yusuf Altintas
Keyword(s):  
Precision Machining ◽  
Cnc Turning ◽  
Cnc Turning Centers
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