Results 31 to 40 of about 10,460,767 (272)
Thermal Sources of Errors in Surface Texture Imaging
Materials, 2020 This paper presents the influence of thermal phenomena on areal measurements of surface topography using contact profilometers. The research concerned measurements under controlled and variable environmental conditions. The influence of internal heat sources from profilometer drives and their electronic components was analyzed.
Karol Grochalski +3 more
openaire +2 more sources
Correlation Stability Problem in Selecting Temperature-Sensitive Points of CNC Machine Tools
Machines, 2022 In the thermal-error compensation of CNC machine tools, temperature-sensitive points (TSPs) are used for predicting thermal error and need to have a high correlation with the thermal error.
Hui Liu +4 more
doaj +1 more source
Efficient Offline Thermal Modelling for Accurate Assessment of Machine Tool Thermal Behaviour [PDF]
, 2009 Thermal gradients from internal and external heat sources cause instabilities which affect the machine tool positional accuracy. Positioning error results from deformation of the machine structure due to linear thermal expansions of some machine parts ...
Longstaff, Andrew P. +4 more
core +5 more sources
Measurements of Temperature of CNC Machine Tool Ball Screw Utilising IR Method
International Journal of Applied Mechanics and Engineering, 2017 In numerous papers it is proposed to use IR measurements of feed axis ball screw temperature distribution in order to compensate CNC machine tool thermal errors.
J. Zapłata
doaj +1 more source
Thermal error modeling based on BiLSTM deep learning for CNC machine tool
Advances in Manufacturing, 2021 The machining accuracy of computer numerical control machine tools has always been a focus of the manufacturing industry. Among all errors, thermal error affects the machining accuracy considerably.
Pu-Ling Liu +5 more
semanticscholar +1 more source
Thermal error prediction of ball screws based on PSO-LSTM
The International Journal of Advanced Manufacturing Technology, 2021 Thermal error of ball screws seriously affects the machining precision of computerized numerical control (CNC) machine tools especially in high speed and precision machining.
Xiangsheng Gao +5 more
semanticscholar +1 more source
A Linear Regression Thermal Displacement Lathe Spindle Model
Energies, 2020 Thermal error is one of the main reasons for the loss of accuracy in lathe machining. In this study, a thermal deformation compensation model is presented that can reduce the influence of spindle thermal error on machining accuracy.
Chih-Jer Lin +5 more
doaj +1 more source
Machine Tool Spindle Temperature Field Parametric Modeling and Thermal Error Compensation
LubricantsThe development of modern machining and manufacturing industry puts forward higher requirements for the machining accuracy of machine tools. The thermal error of the machine tool spindle directly affects the accuracy of the machined workpiece. To improve
Geng Chen +6 more
doaj +1 more source
The International Journal of Advanced Manufacturing Technology, 2022 The thermal error of the motorized spindle is an essential factor affecting the machining accuracy of high-speed numerically controlled machines. The establishment of a high-speed motorized spindle thermal error model for thermal error compensation can ...
Zhaolong Li +5 more
semanticscholar +1 more source
The Application of ANN and ANFIS Prediction Models for Thermal Error Compensation on CNC Machine Tools [PDF]
Thermal errors can have significant effects on Computer Numerical Control (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 ...
Abdulshahed, Ali
core +3 more sources