Results 11 to 20 of about 93,060 (311)

Study on the Unbalanced Fault Dynamic Characteristics of Eccentric Motorized Spindle considering the Effect of Magnetic Pull

open access: yesShock and Vibration, 2021
Unbalanced fault is the most common fault of high-speed motorized spindle, which is the main factor affecting the machining accuracy of high-speed spindle.
Zhan Wang   +3 more
doaj   +1 more source

Dynamic Analysis of High Speed Spindle

open access: yesIOP Conference Series: Materials Science and Engineering, 2020
Abstract Assessment of the thermo-mechanical behaviour of machine-tool spindles is a requisite for the reliable operation of high-speed CNC machine tools. The thermal behaviour and applied loads affect the performance of these high-speed spindles.
V V S H Prasad, V Kamala
openaire   +1 more source

Comprehensive experimental investigation on drilling multi-material carbon fiber reinforced aluminum laminates

open access: yesJournal of King Saud University: Engineering Sciences, 2022
The amalgamation of metallic alloys and fiber-reinforced composites has helped Fiber Metal Laminates (FMLs) like Carbon fiber reinforced aluminum laminates (CARALL) and Glass laminate aluminum reinforced epoxy (GLARE) overcome the limitations of ...
Advith K. Sridhar   +2 more
doaj   +1 more source

Influences of configuration and coating on the vibration characteristics of spindles

open access: yesThe Journal of Engineering, 2022
Strong vibration is the main factor leading to the spinning spindle failure, which is closely related to the spindle end configuration and surface coating.
Hechun Yu   +6 more
doaj   +1 more source

Experimental investigation of glass fiber-reinforced polymer composites during slot milling [PDF]

open access: yesPort Said Engineering Research Journal, 2023
This paper presented the results of an experimental investigation on the machinability of glass fiber reinforced polymer (GFRP) composite materials during slot milling operations. A complete factorial design was used to perform the studies. The impact of
Noha Naeim
doaj   +1 more source

PASSIVE TORQUE SIMULATION OF SMALL ANGULAR CONTACT BEARING AT HIGH SPEED [PDF]

open access: yes, 2017
Description of common ball bearing torque models was presented and adopted to the complex thermo-mechanical model of the high speed spindle. Ball bearing passive torque was measured on the own high-speed spindle design.
Kekula J., Smolík J., Sulitka M.
core   +1 more source

Chatter Vibration Surveillance by the Optimal‐linear Control of Spindle Speed and Randomly Varying Spindle Speed [PDF]

open access: yesPAMM, 2009
AbstractTool‐workpiece relative vibration plays principal role during the process of milling with slender ball end mills. Due to certain conditions, a loss of stability and generation of self‐excited chatter vibration will appear. The paper is devoted to a new approach towards vibration surveillance of rotating tools in modern milling machines. Dynamic
Krzysztof Kalinski, Marek Galewski
openaire   +1 more source

Effect of Spindle Speed and Feed Rate on Surface Roughness and Milling Duration in the Fabrication of Milled Complete Dentures: An In Vitro Study

open access: yesApplied Sciences, 2023
Milling machines have made denture fabrication possible with high accuracy in a short time. However, the relationship between the milling conditions, accuracy, and milling duration has not been clarified.
Yo Akiyama   +4 more
doaj   +1 more source

Correlations between adolescent processing speed and specific spindle frequencies [PDF]

open access: yesFrontiers in Human Neuroscience, 2015
Sleep spindles are waxing and waning thalamocortical oscillations with accepted frequencies of between 11 and 16 Hz and a minimum duration of 0.5 s. Our research has suggested that there is spindle activity in all of the sleep stages, and thus for the present analysis we examined the link between spindle activity (Stage 2, rapid eye movement (REM) and ...
Rebecca S. Nader   +2 more
openaire   +3 more sources

Characterization and Evaluation of Rotation Accuracy of Hydrostatic Spindle under the Influence of Unbalance

open access: yesShock and Vibration, 2020
The paper studies the characterization and evaluation technology of rotation accuracy of hydrostatic spindle under the influence of unbalance. The dynamic model of the motion error of the hydrostatic spindle is established based on the dynamic parameters.
Dongju Chen, You Zhao, Jingfang Liu
doaj   +1 more source

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