Results 271 to 280 of about 20,107 (303)

Thermal error analysis and error prediction modeling on a machine tool

2008 IEEE International Conference on Industrial Engineering and Engineering Management, 2008
Thermal errors are the largest contributor to the dimensional errors of a workpiece in precision machining. It is very significant to study how to accurately simulate the spindle thermal errors. In this paper a novel concept of thermal error modes analysis is proposed to develop a better understanding of the thermal deformation on a machine tool.
null Zhu Rui, null Dai Shijie, null Zhu Yonglu, null Wu Xinye, null Guo Yinbiao   +4 more
openaire   +1 more source

Machine-Tool Error Observer Design With Application to Thermal Error Tracking

Journal of Manufacturing Science and Engineering, 2018
AbstractA parameter identification procedure for identifying the parameters of a volumetric error model of a large machine tool requires hundreds of random volumetric error components in its workspace and thus takes hours of measurement time. It causes thermal errors of a large machine difficult to be tracked and compensated periodically.
Hua-Wei Ko, Shiv G. Kapoor, Placid M. Ferreira, Patrick Bazzoli, J. Adam Nisbett, Douglas Bristow, Yujie Chen   +6 more
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The thermal error optimization models for CNC machine tools

The International Journal of Advanced Manufacturing Technology, 2012
Thermal error compensation is becoming a cost-effective way to improve accuracy of machine tools especially with the increasing demand for machining accuracy in recent years. The compensation effectiveness mainly depends on the accuracy of the thermal error model.
Liang Ruijun, Ye Wenhua, Haiyan H. Zhang, Yang Qifan   +3 more
openaire   +1 more source

Thermal Deformation Errors Compensation System of Machine Tools

Advanced Materials Research, 2011
This research presents a design of a thermal deformation errors compensation system for CNC machine tools which can compensate thermal deformation of Z-axis during the working time. The thermal deformation errors compensation system includes three instruments: displacement tester, temperature tester and thermal errors compensator.
Sheng Li, Xin Hua Yao, Jian Zhong Fu
openaire   +1 more source

A review on spindle thermal error compensation in machine tools

International Journal of Machine Tools and Manufacture, 2015
Abstract Thermal error caused by the thermal deformation is one of the most significant factors influencing the accuracy of the machine tool. Among all the heat sources which lead to the thermal distortions, the spindle is the main one. This paper presents an overview of the research about the compensation of the spindle thermal error.
Yang Li, Wanhua Zhao, Shuhuai Lan, Jun Ni, Wenwu Wu, Bingheng Lu   +5 more
openaire   +1 more source

Machining-Based Thermal Error Analysis of CFRP-Structured Machine Tool

SSRN Electronic Journal, 2020
New structural materials, such as carbon fiber reinforced plastic (CFRP), are used in modern machine tools for energy efficiency improvement by weight reduction. Furthermore, CFRP can manipulate thermal expansion with the fiber orientation, and this is expected to reduce thermal errors.
Makoto Kato, Yuji Mizoguchi, Kazumasa Kono, Yasuhiro Kakinuma   +3 more
openaire   +1 more source

Variable Parameters Model of Machine Tool Thermal Error

2011 Third International Conference on Measuring Technology and Mechatronics Automation, 2011
Due to the ambiguous influencing factors on thermal error and difficulties in determining temperature measuring points, an on-line grey GM(1,1) prediction model with variable parameters is advanced. By virtue of modeling on thermal error with single sequence, the method has no necessity to consider thermal error extraneous affecting factors.
Zhang Ting, Ye Wenhua, Liang Ruijun, Zhao Ruiyue   +3 more
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Dynamic Modeling for Machine Tool Thermal Error Compensation

Manufacturing Engineering, 2001
Abstract This paper presents a new thermal error modeling methodology called the Dynamic Thermal Error Modeling which improves the accuracy and robustness of the machine tool thermal error model. The characteristics of the thermoelastic system are investigated from the dynamic system viewpoint. The pseudo-hysteresis effect is revealed to
Hong Yang, Jingxia Yuan, Jun Ni
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The Research on Thermal Error Modeling and Compensation on Machine Tools

2012 International Conference on Control Engineering and Communication Technology, 2012
To diminish the thermal error and to enhance the machining precision of CNC machines, thermal error compensation is an effective way. Taking GMC4000H/2 machining center as research object, this paper focuses on the thermal compensation skills of machine tools. Firstly, detection method of thermal deformation error on machine tool was introduced.
Bing Ren, Xiaohong Ren, Shan Huang, Guozhi Li   +3 more
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On the Geometric and Thermal Errors of a Hexapod Machine Tool

1999
This paper describes the measurement and analysis of the quasi-static errors of a prototype hexapod milling machine located at the National Institute of Standards and Technology (NIST). Emphasis is placed on a) identification of the most important parametric errors and their potential impact on performance, b) description of the techniques used to ...
openaire   +1 more source