Results 281 to 290 of about 239,194 (337)

RBF-based compensation method on displacement and thermal error

2013 IEEE International Conference on Mechatronics and Automation, 2013
With rapid development in the technologies of high precision machining and the ever increasing demand for high accuracy in the automation industry, addressing accuracy problems due to geometric and thermal errors are becoming more critical in recent years, especially thermal errors which may contribute up to 75% of the overall errors in the system ...
Kok Kiong Tan, Rui Yang, Poi Voon Er, Arthur Tay, Chek Sing Teo   +4 more
openaire   +1 more source

XGBoost-based thermal error prediction and compensation of ball screws

Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2023
The ball screw is an essential component in feed drive systems whose accuracy is seriously affected by machine tool internal and external heat sources. In this paper, a thermal error compensation method for ball screws is proposed based on the extreme gradient boosting (XGBoost) algorithm and thermal expansion principle. An XGBoost predictive model is
Xiangsheng Gao, Kuan Zhang, Zitao Zhang, Min Wang, Tao Zan, Peng Gao   +5 more
openaire   +1 more source

Reduction and Compensation of Thermal Errors in Machine Tools

CIRP Annals, 1995
Abstract The main reasons for dimensional and geometric errors in workpieces produced on machine tools include low static stiffness of the machine structure, low dynamic performance of feed drives, tool wear and thermal deformations of the tool, machine and workpiece.
M. Weck, P. McKeown, R. Bonse, U. Herbst
openaire   +1 more source

Research on Thermal Error Compensation Technique of the Screw

Advanced Materials Research, 2012
In the system of the machine tool, the position error is directly affected by the thermal deformation of ball screw. Screw system is a complex thermal system, which is affected by the processing conditions, the processing cycle, the use of cooling fluid, and the surrounding environment.
Hong Xin Yue, Yan Shi, Yan Mei Xi
openaire   +1 more source

Thermally induced positioning error modelling and compensation based on thermal characteristic analysis

International Journal of Machine Tools and Manufacture, 2015
Abstract To decrease the thermally induced positioning error of machine tools, a novel approach for modelling and compensation is proposed in this study. The cause of this error is determined to be dynamic pitch error, and its manifestations are discussed in this study.
Wenlong Feng, Zihan Li, Qunying Gu, Jianguo Yang   +3 more
openaire   +1 more source

Neural network-based modelling and error compensation of thermally-induced spindle errors

The International Journal of Advanced Manufacturing Technology, 1996
This research is concerned with enhancing the accuracy of a machining centre by compensating for thermally induced spindle errors in real-time. A neural network model was developed for on-line thermal error monitoring. A PC-based error compensation scheme was also developed to upgrade a commercial CNC controller for real-time thermal error compensation
openaire   +1 more source

Thermal error compensation of dry hobbing machine tool considering workpiece thermal deformation

The International Journal of Advanced Manufacturing Technology, 2016
Dry hobbing is a new gear tooth forming process, which would replace the traditional wet hobbing process due to its high efficiency and environmental friendliness. However, due to the absence of metal cutting fluid in dry hobbing, temperature of hobbed workpiece is relatively high, which will lead to the increase of dimension errors, especially tooth ...
Huajun Cao, Libin Zhu, Xianguang Li, Peng Chen, Yongpeng Chen   +4 more
openaire   +1 more source

Thermal behavior analysis and thermal error compensation for motorized spindle of machine tools

International Journal of Precision Engineering and Manufacturing, 2015
The thermal error deformation of motorized spindle plays an important role in the precision machining, while error compensation has been proved to be a cost-effective way. Herein a symmetrical solution for the thermal error problem of spindle is proposed based on the thermal behavior analysis.
Zheng-Chun Du, Si-Yu Yao, Jian-Guo Yang
openaire   +1 more source

Thermal error compensation of CNC machine based on data-driven

2016 IEEE International Conference on Cloud Computing and Big Data Analysis (ICCCBDA), 2016
In thermal error modeling, traditional methods of system identification modeling based on modern control theory are influenced unfavourably by the boundedness of modeling information (data) and unmodeled dynamics, so it is difficult to improve the robustness and accuracy of the model.
null Xian Wei, null Feng Gao, null Jingdong Zhang, null Yunwei Wang   +3 more
openaire   +1 more source

The development of thermal error compensation on CNC machine tools by combining ridge parameter selection and backward elimination procedure

The International Journal of Advanced Manufacturing Technology, 2023
Chienchang Chen, Hongjie Dai, Chunghong Lee, Tunghsien Hsieh, Weicheng Hung, W. Jywe   +5 more
semanticscholar   +1 more source