Results 31 to 40 of about 145,469 (230)

Research on Thermal Compensation of x-Axis Partition of Drilling and Tapping Center Machine Tools

IEEE Access, 2023
As one of the most commonly used metal cutting machines in modern manufacturing industry, the drilling and tapping center machine tool has an irreplaceable position in modern manufacturing industry due to its high operating speed and fast tool changing ...
Lianzhou Yu, Qi Li, Jiping Li, Li Shang, Gang Chen   +4 more
doaj   +1 more source

Error compensation for thermally induced errors on a machine tool [PDF]

, 1996
Heat flow from internal and external sources and the environment create machine deformations, resulting in positioning errors between the tool and workpiece. There is no industrially accepted method for thermal error compensation. A simple model has been selected that linearly relates discrete temperature measurements to the deflection.
openaire   +2 more sources

Research on Error Compensation Technology for CNC Machining

MATEC Web of Conferences, 2017
Aiming at the thermal error problem in the procedure process of CNC machine, this study develops a new thermal error compensation technology. First, spindle and linear axis error are analyzed and measured.
Chen Xianfeng, Zhang Weiming
doaj   +1 more source

A Fourier Series-Neural Network Based Real-Time Compensation Approach for Geometric and Thermal Errors of CNC Milling Machines

Advances in Mechanical Engineering, 2013
In order to improve the accuracy and efficiency of the real-time error compensation, a Fourier Series-Neural Network (FS-NN) based compensation methodology is developed to reduce the thermally induced geometric errors of CNC milling machines under ...
Wei Wang, Yi Zhang, Kaiguo Fan, Jianguo Yang   +3 more
doaj   +1 more source

The application of ANFIS prediction models for thermal error compensation on CNC machine tools

, 2015
Thermal errors can have significant effects on CNC machine tool accuracy. The errors come from thermal deformations of the machine elements caused by heat sources within the machine structure or from ambient temperature change.
Longstaff, Andrew P., Fletcher, Simon, Abdulshahed, Ali, Abdulshahed, Ali M.   +3 more
core   +1 more source

Thermal Error Modeling for Machine Tools: Mechanistic Analysis and Solution for the Pseudocorrelation of Temperature-Sensitive Points

IEEE Access, 2020
The temperature-sensitive point is the input variable of the thermal error compensation model of computer numerical control (CNC) machine tools. At present, the most commonly used selection method is to measure the multipoint temperature and thermal ...
Hui Liu, Enming Miao, Liyin Zhang, Long Li, Yinlong Hou, Dafeng Tang   +5 more
doaj   +1 more source

Temperature-Sensitive Point Selection and Thermal Error Model Adaptive Update Method of CNC Machine Tools

Machines, 2022
The thermal error of CNC machine tools can be reduced by compensation, where a thermal error model is required to provide compensation values. The thermal error model adaptive update method can correct the thermal error model by supplementing new data ...
Hui Liu, Enming Miao, Jingfan Wang, Liyin Zhang, Siyu Zhao   +4 more
doaj   +1 more source

Development and Experimental Verification of a Thermal Elongation Prediction Model for Electric Spindles

Machines
Thermal elongation in high-speed motorized spindles constitutes a major source of machining error in five-axis machine tools, critically impacting machining precision.
Xinyu Liu, Lefu Jiang, Han Ye
doaj   +1 more source

The Thermal Error Characteristic Analysis and Thermal Error Modeling Compensation of Aspheric Grinder

Mechanics
According to the literature analysis, the thermal error of CNC machine tools is the main factor affecting its processing accuracy, accounting for about 40% -70% ; This paper discusses the structure assembly of Aspherical Grinder, which is the research carrier of thermal error analysis of NC machine tool, and analyzes the characteristics and concrete ...
Bo YU, Xiao-peng CHANG, Lei YU
openaire   +1 more source

Thermal error compensation of a 5-axis machine tool using indigenous temperature sensors and CNC integrated Python code validated with a machined test piece

Precision engineering, 2020
Achieving high workpiece accuracy is the long-term goal of machine tool designers. There are many causes for workpiece inaccuracy, with thermal errors being the most common.
M. Mareš, O. Horejš, Lukáš Havlík
semanticscholar   +1 more source