Results 261 to 270 of about 124,616 (302)
Some of the next articles are maybe not open access.
Measurement and Compensation of Thermal Error on a Machining Center
1992With the improvement of machining accuracy of machine tools, the influence of thermal deformation has become increasing conspicious. This paper describes the experimental work to investigate the time-variant and position-dependent thermal error on a vertical machining center. Based on the measured data, empirical models relating tool/workpiece position
K. C. Fan, J. F. Lin, S. S. Lu
openaire +1 more source
Compensation for the thermal error of a multi-axis machining center
Journal of Materials Processing Technology, 1998Abstract This paper presents a systematic methodology for the thermal-error correction of a machine tool. The generalized geometric error model of a multi-axis machine is derived to describe the error motion between the cutting tool and the workpiece using the homogeneous transformation matrix.
Yiding Wang +3 more
openaire +1 more source
Thermal Deformation Errors Compensation System of Machine Tools
Advanced Materials Research, 2011This 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
Monitoring and Compensation of Thermal Error of Profile Grinding Spindle
Key Engineering Materials, 2007Spindle thermal deformation is the main error source of many precision profile grinders. In this paper, the relationship between spindle temperature and either radial or axial thermal deformation is studied based on experiments. The placement and amount of temperature sensors are optimized.
Li Ming Xu +3 more
openaire +1 more source
The Research on Thermal Error Modeling and Compensation on Machine Tools
2012 International Conference on Control Engineering and Communication Technology, 2012To 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 +3 more
openaire +1 more source
Dynamic Modeling for Machine Tool Thermal Error Compensation
Manufacturing Engineering, 2001Abstract 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
openaire +1 more source
Adaptive input selection for thermal error compensation models
CIRP Annals, 2020Abstract The presented method selects optimal inputs for compensation models based on the Thermal Adaptive Learning Control methodology. The number of inputs and the individual inputs for each considered thermal error are automatically adapted. The intelligent combination of k-means clustering and Time Series Cluster Kernel enables the approach to ...
Nico Zimmermann +3 more
openaire +1 more source
A new approach to thermally induced volumetric error compensation
The International Journal of Advanced Manufacturing Technology, 2012A 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 ...
Lu, Yuxia, Islam, Mohammad Nazrul
openaire +2 more sources
RBF-based compensation method on displacement and thermal error
2013 IEEE International Conference on Mechatronics and Automation, 2013With 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 +4 more
openaire +1 more source
A Software Method for Online Thermal Error Inspection and Compensation
International Journal of u- and e- Service, Science and Technology, 2016In this paper, a new online method is proposed to measure and identify the spindle thermal error of the machining center. The method is firstly established by a comprehensive error identification model including geometric and thermal error. Then the multi-viewpoint modeling method based on stereo vision is adopted to obtain the solution of thermal ...
Shuanqiang Yang +2 more
openaire +1 more source