Results 41 to 50 of about 28,309 (205)
Frontiers in Mechanical Engineering, 2022 The lubricant inlet meniscus in a rolling element bearing acts as a reservoir that feeds the elastohydrodynamic contact, resulting in a sufficiently thick film to avoid wear.
W. A. Gray, R. S. Dwyer-Joyce
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Influence of defects on the ductility of liquid 9X2MΦ and 75X3MΦ steel [PDF]
, 2013 Viscosimetric data on liquid 9X2MΦ and 75X3MΦ steel taken from working rollers of a reversible rolling mill with different ultrasonic behavior illustrate the influence of defects recorded in ultrasound monitoring on the temperature and time dependence of
Belonosov, A. V. +3 more
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Characterization of Precipitation in 7055 Aluminum Alloy by Laser Ultrasonics
Metals, 2021 After different rolling conditions, four 7055 aluminum alloy samples with different precipitation sizes were measured by scanning electron microscope, transmission electron microscope and laser ultrasonic.
Zhenge Zhu +7 more
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Very high cycle fatigue of copper: Evolution, morphology and locations of surface slip markings [PDF]
, 2014 The surfaces of commercially pure polycrystalline copper specimens subjected to interrupted 20 kHz fatigue tests in the very high cycle fatigue regime were investigated.
FAVIER, Véronique +4 more
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Jixie chuandong, 2021 This study attempts to solve the problems such as low efficiency and relatively small range due to the constraints of device and monotony of vibration in ultrasonic assisted rolling of gears.
Jinhao Gao +3 more
doaj
Residual stress of as-deposited and rolled Wire + Arc Additive Manufacturing Ti–6Al–4V components [PDF]
, 2016 Wire + arc additive manufacturing components contain significant residual stresses, which manifest in distortion. High-pressure rolling was applied to each layer of a linear Ti–6Al–4V wire + arc additive manufacturing component in between deposition ...
Colegrove, Paul A. +8 more
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Residual Stress in Wheels: Comparison of Neutron Diffraction and Ultrasonic Methods, with Trends in RCF [PDF]
, 2014 The critical damage mechanism on many GB passenger train wheels is Rolling Contact Fatigue (RCF) cracking in the rim. Evidence from field observations suggests that RCF damage occurs much more quickly as the wheelsets near the end of their life.
Bevan, Adam +3 more
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Non-contact ultrasonic detection of angled surface defects [PDF]
, 2011 Non-destructive testing is an important technique, and improvements are constantly needed. Surface defects in metals are not necessarily confined to orientations normal to the sample surface; however, much of the previous work investigating the ...
Clough, A. R. +3 more
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Simulation Design of 30KHz Ultrasonic Rolling Tool Head
IOP Conference Series: Materials Science and Engineering, 2020 Abstract In order to explore the types of ultrasonic rolling tool head used in ultrasonic rolling and finishing processing device, ANSYS Workbench is taken as a tool to simulate the machining process of ultrasonic rolling processing through transient dynamic analysis, and the maximum residual stress distribution and stress concentration ...
Zexu Yu, Jinchun Song, Wenqiang Wang
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Ultrasonic Characterization of Rolling and Recrystallization Textures in Aluminum [PDF]
Texture, Stress, and Microstructure, 1996 Crystallographic texture, which plays an important role in many forming operations, is developed during sheet metal processing. Improved product quality could be achieved if the texture could be measured, quickly and inexpensively, during different stages of the processing.
A. J. Anderson +3 more
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