Results 281 to 290 of about 20,107 (303)

Support Vector Machines Model for Classification of Thermal Error in Machine Tools

The International Journal of Advanced Manufacturing Technology, 2002
This paper addresses a change in the concept of machine tool thermal error prediction which has been hitherto carried out by directly mapping them with the temperature of critical elements on the machine. The model developed herein using support vector machines, a powerful data-training algorithm, seeks to account for the impact of specific operating ...
Ramesh, R., Mannan, M.A., Poo, A.N.
openaire   +1 more source

Assessing Thermally Induced Errors of Machine Tools by 3D Length Measurements

CIRP Annals, 2003
A new measurement technique is proposed for the assessment of thermally induced errors of machine tools. The basic idea is to measure changes of length by a telescopic double ball bar (TDEB) at multiple locations in the machine's workspace while the machine is thermally excited.
Florussen, G.H.J., Delbressine, F.L.M., Schellekens, P.H.J.   +2 more
openaire   +1 more source

An Ensemble Modeling for Thermal Error of CNC Machine Tools

2018
Thermal error caused by the thermal deformation of computer numerical control (CNC) machine tools is one of the main factors to affect the machining accuracy. With monitoring data of the temperature field, establishing data-driven thermal error model is considered as a more convenient, effective and cost-efficient way to reduce the thermal error.
Xuemei Jiang, PanPan Zhu, Ping Lou, Xiaomei Zhang, Quan Liu   +4 more
openaire   +1 more source

Thermal error modeling of multisource information fusion in machine tools

The International Journal of Advanced Manufacturing Technology, 2015
Thermal deformation is one of the principal factors that influence the machining accuracy of machine tools, and it can be improved by thermal error compensation. This paper presents a method of thermal error modeling using multisource information fusion, which can further improve the thermal error compensation accuracy.
Chengxin Zhang, Feng Gao, Yaxiao Che, Yan Li   +3 more
openaire   +1 more source

A study of pre-compensation for thermal errors of NC machine tools

International Journal of Machine Tools and Manufacture, 1997
Thermally-induced errors are major contributors to the overall accuracy of machine tools. In this paper, an error pre-compensation system is developed to correct the thermal errors of the spindle and lead screws. A simple gauge 1-D ball array is used to accelerate and simplify the error measurement.
Shuhe Li, Yiqun Zhang, Guoxiong Zhang
openaire   +1 more source

Recent Patents of Thermal Error Modeling and Thermal Error Prediction of CNC Machine Tool Spindle

Recent Patents on Engineering
: With the development of machine tools to high precision and high automation, thermal error has become the key reason to hinder the improvement of thermal stability of machine tools. The spindle electrothermal error is an important factor affecting the machining accuracy of highspeed CNC machine tools.
Zhaolong Li, Benchao Sun
openaire   +1 more source

Thermal error measurement and modelling in machine tools.

International Journal of Machine Tools and Manufacture, 2003
R Ramesh, M.A Mannan, A.N Poo
openaire   +1 more source

An axial attention-BiLSTM-based method for predicting the migration of CNC machine tool spindle thermal error under varying working conditions

International Journal of Advanced Manufacturing Technology, 2023
, Jianrong Tan, Qiu Chan
exaly  

Sub-regional thermal error compensation modeling for CNC machine tool worktables

Precision Engineering, 2022
Xinyuan Wei, Enming Miao
exaly  

Temperature-sensitive point selection for thermal error modeling of machine tool spindle by considering heat source regions

International Journal of Advanced Manufacturing Technology, 2021
Guoqiang Fu, Caijiang Lu, Hongli Gao
exaly