Results 1 to 10 of about 33,469 (308)

Research on rock breaking mechanism of PDC cutter under the action of ultrasonic vibration. [PDF]

open access: yesPLoS ONE
Ultrasonic vibration technology has significant potential for breaking hard rocks. Understanding the optimal frequency for rock breaking under ultrasonic vibration can significantly reduce the cost of rock breaking and extend the service life of ...
Ruocheng Zhang   +6 more
doaj   +2 more sources

Simulation and Experiment of New Ultrasonic Vibration Network

open access: yesShock and Vibration, 2020
A reasonable ultrasonic vibration network can improve the casting quality of aluminum alloy. Ultrasonic vibration network based on a honeycomb structure has been designed, referred to as a new vibration network.
Xiwen Chen, Xiaoqian Li, Weihua Gui
doaj   +2 more sources

Experimental study on influence of ultrasonic vibration on forming limit

open access: yesMechanics & Industry, 2022
Applying ultrasonic vibration in sheet metal forming can change its forming mechanism and improve its formability. The uniaxial tensile and bulging forming limit experimental setups were designed to study the ultrasonic vibration and forming limit ...
Zha Changli, Zha Shenlong
doaj   +2 more sources

Comparative Study of Ultrasonic Vibration-Assisted Die-Sinking Micro-Electrical Discharge Machining on Polycrystalline Diamond and Titanium [PDF]

open access: yesMicromachines
Die-sinking micro-electrical discharge machining (micro-EDM) is a potential method used to fabricate intricate structures without complex electrode motion planning and compensation.
Cheng Guo   +5 more
doaj   +2 more sources

The effects of ultrasonic vibration on riveting quality. [PDF]

open access: yesSci Rep, 2022
AbstractUltrasonic vibration can reduce the forming force, decrease the friction in the metal forming process and improve the surface quality of the workpiece effectively. The effects of ultrasonic vibration on riveting quality were systematically studied by numerical simulation and experimental methods.
Xie Z, Chen F, He W.
europepmc   +4 more sources

Microstructure and Pitting Corrosion Resistance of AISI 430 Ferritic Stainless Steel Joints Fabricated by Ultrasonic Vibration Assisted Cold Metal Transfer Technique

open access: yesMetals, 2022
The influences of ultrasonic vibration during cold metal transfer welding process on the microstructure, element distribution and pitting resistance of AISI 430 ferritic stainless steel joints with ER 308L as filler metal were investigated.
Naiqiang Xu   +3 more
doaj   +1 more source

Ultra-rapid and low-temperature soldering of hypereutectic Al-Si alloys by ultrasonic-assisted soldering with In interlayer in air for electronic application

open access: yesJournal of Advanced Joining Processes, 2022
Hypereutectic Al-Si alloys were soldered by an ultrasonic-assisted soldering with In interlayer for only 0.1 s at 160 °C in air. The introduction of ultrasonic vibration into the soldering process promoted the formation of the liquid phase by its ...
Yong Nie   +5 more
doaj   +1 more source

The Action of Ultrasonic Vibrations on Actinophages [PDF]

open access: yesJournal of General Microbiology, 1964
Summary: High-frequency sonic oscillations destroyed the plaque-forming ability of actinophages. Among the 31 actinophage strains studied, the fraction of viral particles which survived an exposure for 1 min. to vibrations of 20 kcyc./sec. varied from 100 to 0·0002%.
D L, ANDERSON, S G, BRADLEY
openaire   +2 more sources

An Investigation into the Effect of Ultrasonic Vibration on Drawing Force [PDF]

open access: yes한국정밀공학회지, 2018
Finite element analyses were carried out to investigate the effect of ultrasonic vibration on drawing force in large diameter tube drawing. Ultrasonic vibration was imposed to a drawing die using ultrasonic vibration horns.
Hye Kyung Jung   +3 more
doaj   +1 more source

Foam Destruction by Ultrasonic Vibrations [PDF]

open access: yesJournal of Colloid and Interface Science, 1993
Ultrasonic (US) vibrations prevent formation of foams and promote their destruction if the vibrating element is placed nearby in the surrounding air. The working distance for rapid foam destruction is 10-15 mm when a sharp vibrating tip is used, but is much larger for a broad tip.
Sandor, N., Stein, H.N.
openaire   +1 more source

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