Results 11 to 20 of about 6,815,752 (285)

Defining and Computing Machine Tool Accuracy [PDF]

open access: yes, 2009
Understanding machine tool performance is important for specifying or comparing machines and for determining capability for production. Machine accuracy has generally been described by the linear positioning accuracy and repeatability of the axes.
Longstaff, Andrew P.   +2 more
core   +11 more sources

Research on Machining Error Analysis and Traceability Method of Globoidal Indexing Cam Profile

open access: yesMachines, 2022
The profile of the globoidal indexing cam is a spatially undevelopable surface. It needs a special computer numerical control (CNC) machine tool to finish batch production, and its machining quality will be affected by the motion error of each part of ...
Shuwen Sun   +3 more
doaj   +1 more source

Introducing engineering undergraduates to CNC machine tool error compensation

open access: yesAdvances in Industrial and Manufacturing Engineering, 2022
For manually operated machine tools, the accuracy of the machine tool structure limits the accuracy of the parts produced. Such is not necessarily the case with computer numerically controlled (CNC) machine tools.
Abhijit Bhattacharyya   +4 more
doaj   +1 more source

Influence Analysis of Geometric Error and Compensation Method for Four-Axis Machining Tools with Two Rotary Axes

open access: yesMachines, 2022
Four-axis machine tools with two rotary axes are widely used in the machining of complex parts. However, due to an irregular kinematic relationship and non-linear kinematic function with geometric error, it is difficult to analyze the influence the ...
Guojuan Zhao   +5 more
doaj   +1 more source

Experimental Study of the Volumetric Error Effect on the Resulting Working Accuracy—Roundness

open access: yesApplied Sciences, 2020
Currently, various types of software compensations are applied to machine tools. Their aim is to increase the working accuracy of the tools. The improvement in working accuracy is then further assessed according to the increase in the dimensional and ...
Michal Holub   +6 more
doaj   +1 more source

A trial toward sub-100 nm motion error compensation of ultra-precision machine tool using on-machine metrology system with chromatic confocal probe

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2021
Aspherical or free-form optical surface machining using an ultra-precision machine tool is a common and effective method used in the manufacturing of precision optics.
Hao DUAN   +4 more
doaj   +1 more source

Numerical Aspects of Multilateration for Volumetric Error Calculation

open access: yesMachines, 2022
We discuss two approaches to multilateration with a particular focus on numerical aspects for a given dataset. More precisely, we calculate the volumetric errors of the MCV 754 milling machine from the data measured by a LaserTRACER and provide criteria ...
Michal Holub   +4 more
doaj   +1 more source

The Errors Recognition and Compensation for the Numerical Control Machine Tools Based on Laser Testing Technology

open access: yesOpen Physics, 2019
To improve the accuracy of numerical control machine tools error, this paper studies the application of laser testing technology in numerical control machine tool, and put forward a laser interferometer automatic aiming system which can conduct space ...
Gao Qian, Zhang Pingchuan
doaj   +1 more source

Volumetric error modeling and accuracy improvement by parameter identification of a compound machine tool

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2021
This paper presents a systematic method for kinematic modeling and improving the positioning accuracy of a compound machine tool. With the configuration of model frames and the adjustment of the link offset parameters, the position and orientation of the
Yingchun WU, Jianxin SHEN
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

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