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electromagnetic forces

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Published: 09 June 2014
Fig. 23 Electromagnetic force distribution for skull melting in IFCC. Source: Ref 42 More
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Published: 09 June 2014
Fig. 28 Distribution of (a) electromagnetic force density, (b) melt velocity, and (c) temperature at free surface of the ICF, computed by 3-D models. (d) Photo of melt free surface in operating ICF More
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Published: 09 June 2014
Fig. 6 Meniscus shape and flow pattern as a result of electromagnetic force density distribution in an induction crucible furnace. Source: ABP Induction More
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Published: 09 June 2014
Fig. 15 Electromagnetic force density and melt-free surface in an ICF (induction crucible furnace) computed using a hydrostatic approach compared with free surface quasistatic shape obtained using a hydrodynamic approach More
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005877
EISBN: 978-1-62708-167-2
..., and electromagnetic forces. differential equations electrical properties magnetic properties mathematical modeling Electromagnetic problem solutions are based on the macroscopic theory of the continuous model for the electromagnetic field (EMF). It is described by a system of integral or partial...
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Published: 31 October 2011
Fig. 1 Various driving forces and the resulting liquid convection in a gas tungsten arc weld pool. (a) Electromagnetic force. (b) Surface tension gradient force with negative ∂γ/∂ T . (c) Surface tension gradient force with positive ∂γ/∂ T . (d) Buoyancy force. (e) Plasma jet shear stress More
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Published: 31 August 2017
Fig. 10 Induction crucible furnace. (a) Cross section of key components. (b) Electromagnetic force density distribution that results in four-quadrant stirring action, which aids in producing a homogeneous melt. Courtesy of ABP Induction Systems More
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005907
EISBN: 978-1-62708-167-2
... surface for its reduction, the ceramic shield ( Fig. 4a ) and cover may be used. The melt flow is determined by electromagnetic force, which is a result of eddy current interaction induced in the melt with resultant magnetic field. The source of the EMF is the inductor-crucible ( Fig. 5a...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005664
EISBN: 978-1-62708-174-0
... in determining the behavior of the arc, the quality of the resultant welds, and the productivity of the process. The detachment of the melted electrode is controlled by forces acting on the liquid droplet formed by the melted electrode. Of these forces, the electromagnetic force often plays a dominant role...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005895
EISBN: 978-1-62708-167-2
... toward the outside. The “skin effect” causes the current density to decrease from the outside toward the inside. In addition to this Joule heat generation, the interaction of the induced eddy currents in the melt with the resulting electromagnetic field (EMF) leads to electromagnetic forces (Lorentz...
Image
Published: 09 June 2014
Fig. 16 Electromagnetic (EM) force density and melt-flow patterns in industrial ICF (induction crucible furnace) computed using the eddy part of EM force More
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005127
EISBN: 978-1-62708-186-3
... and electromagnetic forming. These techniques are distinct from most other metal forming methods in that the explosive or electromagnetic force first accelerates the workpiece to a high velocity, and the kinetic energy of the workpiece is significant. The sheet metal workpiece then changes shape, either as it strikes...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005898
EISBN: 978-1-62708-167-2
... momentum diffusion rate) Oil – Pr ≫1, t.i. δ HD ≫ δ thermal (momentum diffusion rate greatly exceeds energy diffusion rate). Conductive Fluid Flow in Electromagnetic Field For conductive incompressible fluid flow in an electromagnetic field, external force f ext in Navier-Stokes...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005234
EISBN: 978-1-62708-187-0
... and electromagnetic forces, and additional viscous terms not expressed by ∇ · (μ∇ V ) ( Ref 19 ). The central task in using Eq 19 and 20 to predict the fluid flow and pressure in a casting requires the adaptation of the Navier-Stokes equations to account for physical phenomena specific to the two-phase...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005842
EISBN: 978-1-62708-167-2
... electrical and thermal properties, an oxygen-free copper dramatically reduces the risk of hydrogen embrittlement, improves creep resistance, and is more ductile. Ductility is very important because coil turns always are subjected to flexing and electromagnetic forces of an appreciable magnitude. Higher cost...
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Published: 30 September 2014
) Effect of magnetic field on phase transformations (24) Electromagnetic (Lorentz) forces (25) Stress/plastic strain dependent electromagnetic properties More
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005516
EISBN: 978-1-62708-197-9
... experienced by the turns of the coil. It concludes with information on some case studies of numerical simulation. coating coils distortion electromagnetic forces heat transfer modes hot working induction heating numerical simulation thermal conduction thermal convection thermal radiation...
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Published: 01 January 2006
Fig. 17 Illustrations of the bump forming process. (a) Actuator path in an electromagnetically augmented stamping punch. (b) Increase in draw depth available using such a hybrid process. (c) Force-displacement trace for the traditional forming process as well as when periodic electromagnetic More
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005595
EISBN: 978-1-62708-174-0
... pressure to obtain a weld between the metals. In this process, the sudden discharge of a capacitor bank through a coil of relatively few turns produces a strong transient magnetic field. If this field is coupled with a metal workpiece, an intense impulsive force acts on the material and accelerates...
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Published: 01 August 2018
Fig. 12 Magnetic field dependence of the amplitude of the first antisymmetric Lamb mode generated by a tangential field meander coil electromagnetic acoustic transducer in steel (a hot rolled iron plate). The solid broken line is a theoretical prediction based on the measured magnetostrictive More