Results 21 to 30 of about 31,249 (267)

Effect of Rotary Cutting Tool Posture on Machining Performance utilizing Multi-Tasking Lathe

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2008
In this report, a driven rotary tool's machining performance on SUS304 stainless steel was examined. The rotary tool was attached to a milling axis on a multi-tasking lathe which has B axis control.
Hiroshi NAKAJIMA   +5 more
doaj   +1 more source

Fast Experimental Energy Characterization of a Controlled Rotary Axis

open access: yesProcedia CIRP, 2016
The goal of the paper is to present a methodology and the related instrumentation for fast energy characterization of industrial machines. Standard energy measurements prescribe acquiring power flowing into the system and into every significant subsystem of the machine using a considerable number of power meters (or repeated measurements) that ...
Wójcicki J, Borgia S, Bianchi G
openaire   +3 more sources

Dynamic Modeling and Analysis of the Large-Scale Rotary Machine with Multi-Supporting

open access: yesShock and Vibration, 2011
The large-scale rotary machine with multi-supporting, such as rotary kiln and rope laying machine, is the key equipment in the architectural, chemistry, and agriculture industries.
Xuejun Li, Yiping Shen, Songlai Wang
doaj   +1 more source

Evaluation of dynamic behavior of rotary axis in five-axis machining center (Behavior around motion direction changes)

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2016
Several methods of evaluating the motion accuracy of the rotary axes of five-axis machining centers have been proposed in past studies. Because it is known that particular motion errors exist near motion direction changing points, it is important to ...
Tadahiro NISHIGUCHI   +2 more
doaj   +1 more source

A Ball Bar Measurement Scheme with Single-Axis Rotation Modes for Position-Independent Geometric Error Identification in Dual Rotary Table Five-Axis Machine Tools

open access: yesSensors
Position-independent geometric errors (PIGEs) of rotary axes are critical factors limiting the machining accuracy of five-axis machine tools. Aiming at the accurate identification of rotary-axis PIGEs for dual rotary table five-axis machine tools, this ...
Jinlong Zhang, Hongtao Yang, Zhaoyao Shi
doaj   +1 more source

An Embedded Sensor System for Real-Time Detecting 5-DOF Error Motions of Rotary Stages

open access: yesSensors, 2019
The geometric error motions of rotary stages greatly affect the accuracy of constructed machines such as machine tools, measuring instruments, and robots.
Zhi-Feng Lou   +5 more
doaj   +1 more source

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

Method to evaluate speed and accuracy performance of CNC machine tools by speed-error 2-D representation

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2019
In this research, we propose a method to evaluate both speed and accuracy performance of CNC machine tools at the same time. An important facet of the contouring performance of machine tools with computer numerical control (CNC) is the machining of ...
Toshiaki OTSUKI   +2 more
doaj   +1 more source

A Method for Simultaneously Measuring 6DOF Geometric Motion Errors of Linear and Rotary Axes Using Lasers

open access: yesSensors, 2019
A novel method for simultaneously directly measuring six-degrees-of-freedom (6DOF) geometric motion errors of CNC machine tools was proposed, and a corresponding measurement system was developed. This method can not only be applied for measuring a linear
Fajia Zheng   +3 more
doaj   +1 more source

Natural Killer Cells in Paediatric Soft Tissue Sarcomas: A Systematic Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Paediatric soft tissue sarcomas (pSTS) are a rare and heterogeneous group of malignant tumours arising in tissues of mesenchymal origin. The role of natural killer (NK) cells in pSTS remains poorly understood, with evidence fragmented across small preclinical studies and early‐phase clinical trials.
Raya Dean   +7 more
wiley   +1 more source

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