Results 51 to 60 of about 10,624,441 (235)

Geometric Error Analysis and Compensation of Rotary Axes of Five-axis Machine Tools

open access: yes工程科学与技术, 2020
The position independent geometric errors (PIGEs) of the rotating axes of five-axis machine tools caused by the assembly are the key factor to determine the accuracy of the machine. Quantization analysis of the influence of PIGEs on the accuracy of error
Shijie GUO, Dongsheng ZHANG
doaj  

An Analytical Decoupled Corner Smoothing Method for Five-Axis Linear Tool Paths

open access: yesIEEE Access, 2019
Nowadays, the tool path in five-axis machining is usually described with linear segments. Tangential and curvature discontinuities of the linear tool path lead to poor machining efficiency and quality.
Xin Zhao   +4 more
doaj   +1 more source

Automated planning to minimise uncertainty of machine tool calibration [PDF]

open access: yes, 2014
When calibrating a machine tool, multiple measurement tasks will be performed, each of which has an associated uncertainty of measurement. International Standards and best-practice guides are available to aid with estimating uncertainty of measurement ...
Longstaff, Andrew P.   +8 more
core   +1 more source

Clinical Variability and Genotype Driven Outcomes in an International Cohort of 14 Pediatric FIG4 Patients

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Biallelic FIG4 variants classically cause distinct conditions characterized by peripheral neuropathy (Charcot‐Marie‐Tooth disease type 4J) or skeletal dysplasia (Yunis‐Varón syndrome). However, central nervous system involvement is increasingly recognized. The prevalence and specific characteristics of movement disorders within FIG4‐
Andrea Gangfuß   +22 more
wiley   +1 more source

Simulation of the structural elements of a three axis VMC for machine tool error compensation [PDF]

open access: yes, 2008
Great interest is being made by manufacturers and end users in the reduction of inherent errors which occur in the design and manufacture of machine tools.
Longstaff, Andrew P.   +5 more
core   +4 more sources

Double Ballbar Measurement for Identifying Kinematic Errors of Rotary Axes on Five-Axis Machine Tools

open access: yesAdvances in Mechanical Engineering, 2013
This paper proposes a novel measuring method which uses double ballbar (DBB) to inspect the kinematic errors of the rotary axes of five-axis machine tool.
Wei Wang, Yi Zhang, Jianguo Yang
doaj   +1 more source

Evaluation of Synchronous Motion in Five-axis Machining Centers With a Tilting Rotary Table

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2007
This paper proposes a new method for evaluating the synchronous inaccuracy of a translational axis and a rotational axis in five-axis controlled machining centers with a tilting rotary table.
Masaomi TSUTSUMI   +3 more
doaj   +1 more source

An attempt to relate dynamic tracking error to occurring situation based on additional rectilinear motion for five-axis machine tools

open access: yesAdvances in Mechanical Engineering, 2020
During five-axis CNC machining, the dynamic tracking error of the five-axis machine tool caused by imperfect servo dynamic performance is the major factor affecting the accuracy during high-speed and high-precision manufacturing.
Qicheng Ding   +3 more
doaj   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

open access: yesAdvanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice   +2 more
wiley   +1 more source

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