Results 11 to 20 of about 20,107 (303)
Research on optimization of temperature sensitive points of machine tool thermal error based on independent variable selection criteria [PDF]
Scientific ReportsIn order to improve the prediction accuracy and robustness of the machine tool thermal error model, a method to select temperature sensitive points of the machine tool thermal error model based on independent variable selection criteria is proposed ...
Huadong Li, Jingjun Liu, Yang Li
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The significance of air pockets for modelling thermal errors of machine tools [PDF]
, 2013 It is well known, especially with the prevalence of compensation for geometric errors, that thermal error represents the most significant proportion of the total volumetric error of the machine tool. Thermal error in machine tools originates from changes to internal and external heat sources that vary the structural temperature of the machine tool ...
Mian, Naeem S. +3 more
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Thermal Positioning Error Modeling of Servo Axis Based on Empirical Modeling Method
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 +3 more
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Digital Twin-Driven Thermal Error Prediction for CNC Machine Tool Spindle
Lubricants, 2023 Traditional methods for predicting thermal error ignore the correlation between physical world data and virtual world data, leading to the low prediction accuracy of thermal errors and affecting the normal processing of the CNC machine tool (CNCMT ...
Quanbo Lu, Dong Zhu, Meng Wang, Mei Li
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Thermal machine tool error prediction during milling
Procedia CIRP, 2023 56. CIRP International Conference on Manufacturing Systems, CIRP CMS 2023, Cape Town, South Africa, 24 Oct 2023 - 26 Oct 2023; Procedia CIRP 120, 1510-1515 (2024). doi:10.1016/j.procir.2023.09.206 special issue: "56th CIRP International Conference on Manufacturing Systems 2023 / edited by Khumbulani Mpofu, Natasha Sacks, Oliver Damm"
Brecher, Christian +4 more
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Real-Time Compensation for Thermal Errors of the Milling Machine
Applied Sciences, 2016 This paper is focused on developing a compensation module for reducing the thermal errors of a computer numerical control (CNC) milling machine. The thermal induced displacement variations of machine tools are a vital problem that causes positioning ...
Tsung-Chia Chen +4 more
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Deep Learning Prediction for Thermal Error of CNC Machine Tools Based on Attention Mechanism
工程科学与技术, 2021 Thermal error prediction and compensation of CNC machine tools is an important technology to improve the machining accuracy and reliability of CNC machine tools. The thermal error of machine tool is time-varying and nonlinear. To improve the accuracy and
Liuqing DU, Renjie LI, Baochuan LI
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Research progress of machine tool thermal error modeling technology
Journal of Hebei University of Science and Technology, 2015 During cutting, machine tools are influenced by different heat sources, which induces machine thermal deformation, deviation and thermal error. In different machine errors, thermal error accounts for 40%~70% of total machine errors, which is the main ...
Qianjian GUO, Hongmei WANG, Aijun LI
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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.
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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 +5 more
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