Resistance sintering of NdFeBCo permanent magnets and analysis of their properties

Cannella, Emanuele; Nielsen, Chris Valentin; Bay, Niels

doi:10.1016/j.cirpj.2020.02.005

Cited by 4 publications

(6 citation statements)

References 30 publications

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“…The conversion of heat into temperature increase and the development of the temperature  The simulations presented here would be applicable to optimization of process parameters in terms of target relative density and its distribution, and in terms of the developed temperatures. For resistance sintering of other materials, such as permanent magnets, the temperature is important for the developed structures, because it influences the physical properties of the magnets [13].…”

Section: Discussionmentioning

confidence: 99%

“…chromium carbide [9],and titanium [10,11]. Recently, Leich et al [12] and Cannella et al [13] applied the process to sintering of an Nd-alloy for producing permanent magnets.…”

Section: Accepted Manuscript N O T C O P Y E D I T E Dmentioning

confidence: 99%

“…with the thermal conductivity k , mass density m  , specific heat capacity p C , outward normal n to surface n S , and heat rate from Joule heating q  given by equation (13).…”

Section: Thermal Modelmentioning

confidence: 99%

See 2 more Smart Citations

Numerical Simulation of Resistance Sintering of Titanium by a Porous Continuum Approach

Cannella

Martins

Nielsen

2021

Journal of Manufacturing Science and Engineering

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This paper presents a numerical model for the simulation of resistance sintering. It involves an electro-thermo-mechanical coupling, where each model is simulated as a continuum with the influence of porosities included through the distribution of relative density, i.e. the ratio of the apparent density to that of the corresponding fully dense bulk material. For the mechanical response, this involves a plasticity model based on a porous formulation. Other material data have to be supplied as a function of relative density and temperature, as for example the electrical resistivity. The numerical modeling is compared to experimentally resistance sintered titanium with good agreement in terms of pre-compaction and developed relative density and temperature during the sintering process.

show abstract

Section: Discussionmentioning

confidence: 99%

“…chromium carbide [9],and titanium [10,11]. Recently, Leich et al [12] and Cannella et al [13] applied the process to sintering of an Nd-alloy for producing permanent magnets.…”

Section: Accepted Manuscript N O T C O P Y E D I T E Dmentioning

confidence: 99%

See 1 more Smart Citation

Numerical Simulation of Resistance Sintering of Titanium by a Porous Continuum Approach

Cannella

Martins

Nielsen

2021

Journal of Manufacturing Science and Engineering

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“…Three parameters are responsible in the description of PM material (Akyun, 2019; Cannella et al, 2020). The PM material parameters used are the residual induction B r , the relative permeability μ r , and a demagnetization parameter denoted C B min .…”

Section: Geometric Design Of the Wind Turbine Generatormentioning

confidence: 99%

“…The approximation of PM material parameter values of commercially available PM material types is listed in the Table 3 (Cannella et al, 2020):…”

Section: Geometric Design Of the Wind Turbine Generatormentioning

confidence: 99%

Design and optimization of permanent magnet synchronous generator dedicated to direct-drive, high power wind turbine

et al. 2021

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This paper presents analysis, design, and optimization of a high-power permanent-magnet synchronous generator (PMSG). This generator is introduced in a large-scale wind turbine which can be used in a big wind farm. This generator is used in gearless configuration. The work focuses on the geometric sizing and the finite element analysis (FEA) of the PMSG. FEA is a good choice for analyzing problems over complicated domains. The flux, the electromotive force, the cogging torque, and the torque are calculated using analytical equations. Then, these parameters are obtained using finite element method (FEM) in the software FEMM and the compared with analytical results in order to validate our study. The second part presents the formulation of the optimization problem, including the optimization space, constraints, and objectives. The genetic algorithm (GA) is adopted in this design optimization in order to minimize the generator cost.

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Amorphous-crystalline nanostructured Nd-Fe-B permanent magnets using laser powder bed fusion: Metallurgy and magnetic properties

Aboulkhair

Robertson

et al. 2023

Acta Materialia

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Resistance sintering of NdFeBCo permanent magnets and analysis of their properties

Cited by 4 publications

References 30 publications

Numerical Simulation of Resistance Sintering of Titanium by a Porous Continuum Approach

Numerical Simulation of Resistance Sintering of Titanium by a Porous Continuum Approach

Design and optimization of permanent magnet synchronous generator dedicated to direct-drive, high power wind turbine

Amorphous-crystalline nanostructured Nd-Fe-B permanent magnets using laser powder bed fusion: Metallurgy and magnetic properties

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