Results 21 to 30 of about 158,077 (267)

A manufacturing-oriented error modelling method for a hybrid machine tool based on the 3-RS parallel spindle head

open access: yesAdvances in Mechanical Engineering, 2019
Five-axis hybrid machine tools are widely used due to the advantages of high speed, high precision, and good performance in the aviation and aerospace manufacturing industry.
Yanbing Ni   +5 more
doaj   +1 more source

High-Efficient Calculation Method for Sensitive PDGEs of Five-Axis Reconfigurable Machine Tool

open access: yesMachines, 2021
Sensitive geometric errors of a machine tool have significant influence on machining accuracy, and it is important to identify them. Complex modeling and analysis must be carried out to identify the sensitive geometric errors of a five-axis machine tool ...
Zhanqun Song   +4 more
doaj   +1 more source

Error compensation in NC machine tools

open access: yesGlobal Journal of Computer Sciences: Theory and Research, 2017
This work contributes to the development of new approaches to tolerancing for machining using a machine tool with digital control. Our research is focused in two directions. First, it focuses on the manufacturing tolerances. The aim was to establish procedures for validating ranges of light manufacturing dispersions, manufacturing errors and machine ...
Mohamed Rahou   +3 more
openaire   +1 more source

A mapping model between the workpiece geometric tolerance and the end pose error of CNC machine tool considering structure distortion of cutting process system

open access: yesAdvances in Mechanical Engineering, 2021
Aiming at the problem that the geometric accuracy design index of machine tools is difficult to be determined reasonably in the geometric precision design process of CNC machine tools, this paper presents a mapping model between geometric tolerance of ...
Zixin Lin   +4 more
doaj   +1 more source

Automated workpiece setting operation by on-machine measurement for efficient ultraprecision cutting of micro-shapes

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2022
Ultraprecision cutting used for creating highly precise components and particularly micro-shapes requires ultraprecision machine tools. However, these machine tools are operated under restricted cutting conditions such as feed rate and depth of cut ...
Meng XU   +3 more
doaj   +1 more source

Investigation on Structural Mapping Laws of Sensitive Geometric Errors Oriented to Remanufacturing of Three-Axis Milling Machine Tools

open access: yesMachines, 2022
Three-axis milling machine tools are widely used in manufacturing enterprises, and they have enormous potential demands for remanufacturing to improve their performance.
Wenzheng Ding, Zhanqun Song, Shuang Ding
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

Error estimation of machined surfaces in multi-axis machining with machine tool errors including tool self-intersecting motion based on high-accuracy tool swept volumes

open access: yesProceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21, 2017
A novel method is proposed for estimating the machining errors on machined surfaces caused by errors of multi-axis machine tools, such as geometric errors, based on a new generating method of tool swept volumes. In the proposed tool swept volume generation method, the boundary surfaces of the tool swept volumes are derived as triangular mesh models ...
ARAI, Wataru   +2 more
openaire   +1 more source

Research progress of machine tool thermal error modeling technology

open access: yesJournal 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
doaj   +1 more source

A Method to Optimize Geometric Errors of Machine Tool based on SNR Quality Loss Function and Correlation Analysis

open access: yesMATEC Web of Conferences, 2017
Instead improving the accuracy of machine tool by increasing the precision of key components level blindly in the production process, the method of combination of SNR quality loss function and machine tool geometric error correlation analysis to optimize
Cai Ligang   +4 more
doaj   +1 more source

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