Results 11 to 20 of about 1,075,531 (290)

Effects of Cooling Systems on the Thermal Behaviour of Machine Tools and Thermal Error Models

open access: yesJournal of Machine Engineering, 2020
Today, cooling systems are increasingly applied to the structure of machine tools (MT). Unfortunately, to date there have been few efforts to precisely control these cooling systems, which inhibits the full utilisation of their potential to improve MT ...
Martin Mareš   +4 more
doaj   +1 more source

Novel Real-Time Compensation Method for Machine Tool’s Ball Screw Thermal Error

open access: yesApplied Sciences, 2023
The real-time compensation of thermal error in ball screws is an effective means to improve the accuracy of machining tools. However, the trade-off between robustness and computational efficiency of existing ball screw thermal error models is complicated
Ren Rong   +4 more
doaj   +1 more source

The Thermal Error Estimation of the Machine Tool Spindle Based on Machine Learning

open access: yesMachines, 2021
Thermal error is one of the main sources of machining error of machine tools. Being a key component of the machine tool, the spindle will generate a lot of heat in the machining process and thereby result in a thermal error of itself.
Yu-Cheng Chiu   +2 more
doaj   +1 more source

An Unsupervised Regularization and Dropout based Deep Neural Network and Its Application for Thermal Error Prediction

open access: yesApplied Sciences, 2020
Due to the large size of the heavy duty machine tool-foundation systems, space temperature difference is high related to thermal error, which affects to system’s accuracy greatly. The recent highly focused deep learning technology could be an alternative
Yang Tian, Guangyuan Pan
doaj   +1 more source

Simulation, Modeling and Experimental Research on the Thermal Effect of the Motion Error of Hydrostatic Guideways

open access: yesMicromachines, 2021
Hydrostatic guideways are widely applied in ultra-precision machine tools, and motion errors undermine the machining accuracy. Among all the influence factors, the thermal effect distributes most to motion errors.
Pengli Lei   +4 more
doaj   +1 more source

Digital Twin-Driven Thermal Error Prediction for CNC Machine Tool Spindle

open access: yesLubricants, 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
doaj   +1 more source

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

open access: yes, 2014
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.
Abdulshahed   +35 more
core   +1 more source

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

open access: yesMachines, 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   +4 more
doaj   +1 more source

A novel approach for ANFIS modelling based on Grey system theory for thermal error compensation [PDF]

open access: yes, 2014
The fast and accurate modelling of thermal errors in machining is an important aspect for the implementation of thermal error compensation. This paper presents a novel modelling approach for thermal error compensation on CNC machine tools.
Abdulshahed, Ali   +2 more
core   +1 more source

Machining Accuracy Enhancement of a Machine Tool by a Cooling Channel Design for a Built-in Spindle

open access: yesApplied Sciences, 2020
This study presents a multiphysics simulation analysis that was performed for the cooling channel of a built-in spindle. The design of experiments (DOE) method was employed to optimize the dimension of the cooling channel, and a practical machining ...
Kun-Ying Li, Win-Jet Luo, Shih-Jie Wei
doaj   +1 more source

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