Results 1 to 10 of about 2,009,459 (332)

A Regularized Regression Thermal Error Modeling Method for CNC Machine Tools under Different Ambient Temperatures and Spindle Speeds [PDF]

Sensors, 2023
Establishing a mathematical model to predict and compensate for the thermal error of CNC machine tools is a commonly used approach. Most existing methods, especially those based on deep learning algorithms, have complicated models that need huge amounts ...
Xinyuan Wei, Honghan Ye, Jinghuan Zhou, Shujing Pan, Muyun Qian   +4 more
doaj   +3 more sources

Year-Round Thermal Error Modeling and Compensation for the Spindle of Machine Tools Based on Ambient Temperature Intervals [PDF]

Sensors, 2022
The modeling and compensation method is a common method for reducing the influence of thermal error on the accuracy of machine tools. The prediction accuracy and robustness of the thermal error model are two key performance measures for evaluating the ...
Xinyuan Wei, Honghan Ye, Xugang Feng
doaj   +3 more sources

A Review of Thermal Error Modeling Methods for Machine Tools

Applied Sciences, 2021
Thermal error caused by thermal deformation is one of the most significant factors influencing the accuracy of the machine tool. Compensation is a practical and efficient method to reduce the thermal error.
Yang Li, Maolin Yu, Yinming Bai, Zhaoyang Hou, Wenwu Wu   +4 more
doaj   +2 more sources

Study on Thermal Error Modeling for CNC Machine Tools Based on the Improved Radial Basis Function Neural Network

Applied Sciences, 2023
The thermal error modeling technology of computer numerical control (CNC) machine tools is the core of thermal error compensation, and the machining accuracy of CNC machine tools can be improved effectively by the high-precision prediction model of ...
Zhiming Feng, Xinglong Min, Wei Jiang, Fan Song, Xueqin Li   +4 more
doaj   +2 more sources

Thermal Positioning Error Modeling of Servo Axis Based on Empirical Modeling Method [PDF]

Micromachines, 2021
In order to investigate the thermal effect of a servo axis’ positioning error on the accuracy of machine tools, an empirical modeling method was proposed, which considers both the geometric and thermal positioning error.
Yang Li, Hexuan Shi, Shijun Ji, Fusheng Liang   +3 more
doaj   +3 more sources

A Novel Two-Mode Integral Approach for Thermal Error Modeling in CNC Milling-Turning Machining Center

IEEE Access, 2022
Thermal errors have the largest contribution, as much as about 70%, to the machining inaccuracy of computer-numerical-controlled (CNC) machining centers. The error compensation method so far plays the most popular and effective way to minimize the
Wenwu Lian, Lei Zhang, Kun-Chieh Wang, Hong-Yi Chen, Chi-Hsin Yang   +4 more
doaj   +2 more sources

A Review of Machine Learning-Based Thermal Error Modeling Methods for CNC Machine Tools

Machines
Heat source-induced thermal error is a primary element influencing the precision of CNC machine tools. A practical and economical approach to mitigating thermal errors is through thermal error compensation.
Sen Mu, Chunping Yu, Kunlong Lin, Caijiang Lu, Xi Wang, Tao Wang, Guoqiang Fu   +6 more
doaj   +2 more sources

Research on Thermal Error Modeling of Motorized Spindle Based on BP Neural Network Optimized by Beetle Antennae Search Algorithm

Machines, 2021
High-speed motorized spindle heating will produce thermal error, which is an important factor affecting the machining accuracy of machine tools. The thermal error model of high-speed motorized spindles can compensate for thermal error and improve ...
Zhaolong Li, Bo Zhu, Ye Dai, Wenming Zhu, Qinghai Wang, Baodong Wang   +5 more
doaj   +2 more sources

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   +2 more sources

Modeling of thermal errors for dual-spindle turning-milling compound machine tools based on hybrid networks [PDF]

Scientific Reports
Thermal error is the key factor affecting the machining accuracy of high-precision CNC machine tools. In order to solve the problem of thermal error of dual-spindle turning and milling machine tools, this study proposes an optimized CNN-BiLSTM Hybrid ...
Wentao Lu, Jianchen Wang, Jianqiang Zhou, Xiaolei Deng, Hongyi Wu, Lei Zhang   +5 more
doaj   +2 more sources