Results 111 to 120 of about 1,282,956 (302)

Numerical Modeling of High-Speed Free Bulging of Thin-Wall Aluminum Tubes under the Action of Impulse Electromagnetic Forces [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2015
The paper proposes an approach in numerical modeling of electromagnetic forming of aluminum tubes. The investigated technology refers to a free expansion/bulging, without a die, of a thin wall aluminum tube. The aim is to build an accurate model that can
PASCA Sorin, PASCA Alexandra
doaj  

Magnetic field enhancement in electromagnetic forming systems using anisotropic materials

open access: yes, 2010
Electromagnetic Forming (EMF) is a type of high rate forming which exploits pulsed power techniques to create high intensive pulsed magnetic fields to rapidly reshape metal parts. This technique is sometimes called magnetic pulse forming.
Bahmani, Amin,   +2 more
core  

Application of Electromagnetic Forming as a Light-Weight Manufacturing Method for Large-Scale Sheet Metal Parts [PDF]

open access: yes, 2018
Electromagnetic forming (EMF), due to its advantages of light-equipment, single-side die, improved formability, reduced wrinkling, lower spring-back, and so on, is high potential for shaping large sheet metal parts in aviation and aerospace industries ...
Lai, Zhipeng   +8 more
core   +1 more source

Current‐Driven Chirality Detection of Magnetic Textures in Cylindrical Nanowires

open access: yesAdvanced Functional Materials, EarlyView.
Current‐assisted anisotropic magnetoresistance measurements in individual Ni/Au cylindrical nanowires enable detection of vortex chirality near Au segments and selective magnetic reversal in defined wire sections at magnetic fields lower than the propagation field. This approach provides a simple, cost‐effective, and non‐invasive method for probing and
Javier Rial   +6 more
wiley   +1 more source

SHEET ELECTROMAGNETIC FORMING USING CONVEX PUNCH INSTEAD OF CONVAVE DIE

open access: yesIranian Journal of Materials Science and Engineering, 2016
High speed and absence of a precise control over pressure distribution confine sheet Electromagnetic Forming into a die to simple shapes having shallow depth. It is possible to reach a higher depth by using a convex punch instead of a concave die.
E. Eshghi, M Kadkhodayan
doaj  

Comparison between incremental deformation theory and flow rule to simulate sheet-metal forming processes [PDF]

open access: yes, 2012
Numerical simulation of the deep drawing process for the manufacture of aeronautical or automotive components should predict with good accuracy the behaviour during the forming operation, taking into account, the material and the process parameters ...
BATOZ, Jean-Louis   +3 more
core  

Experimental Investigations on the Optimum Driver Configuration for Electromagnetic Sheet Metal Forming [PDF]

open access: yes, 2014
Electromagnetic forming is a high speed forming process especially suitable for materials with high electrical conductivity such as copper or aluminum. In case of materials with comparatively low electrical conductivity (e.g.
Tekkaya, A. E., Weddeling, C., Gies, S.
core   +1 more source

Defect‐Mediated Inelastic Light Scattering by Infrared Phonons in Hexagonal Boron Nitride

open access: yesAdvanced Functional Materials, EarlyView.
Optically active defects in hexagonal boron nitride enable inelastic stimulated light scattering mediated by infrared‐active phonons, relaxing conventional Raman selection rules. Defect engineering enhances the Stokes‐conversion process and activates both TO‐ and LO‐phonon scattering channels.
Prabhdeep Singh   +4 more
wiley   +1 more source

A Production-oriented Approach in Electromagnetic Forming of Metal Sheets [PDF]

open access: yes, 2006
parts per unit. Especially demands of modern lightweight design seem to be hard to satisfy by stretching conventional production methods. Thus, it is necessary to find new approaches.
Löschmann, F.   +4 more
core   +1 more source

Managing Charge Transport and Exciton Generation for Highly Efficient, Bright, and Stable Near‐Infrared Organic Radical Light‐Emitting Diodes

open access: yesAdvanced Functional Materials, EarlyView.
High‐performing near‐infrared (NIR) organic light‐emitting diodes are demonstrated using an efficient and stable 800 nm‐emissive organic radical and a thermally activated delayed fluorescence (TADF) host. TADF‐assisted exciton generation combined with improved charge transport enables high external quantum efficiency (>8%), high radiance (>70,000 mW sr−
Hwan‐Hee Cho   +6 more
wiley   +1 more source

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