Hysteresis Loss Evaluation of Additively Manufactured Soft Magnetic Core

Tiismus, Hans; Kallaste, Ants; Belahcen, Anouar; Rassõlkin, Anton; Vaimann, Toomas

doi:10.1109/icem49940.2020.9270836

Cited by 7 publications

(5 citation statements)

References 19 publications

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“…In addition to the flexibility in geometrical shape realization, [20,21] report high magnetic permeability of up-to 31,000, low hysteresis losses i.e., low coercivity of minimum 16 A/m and up-to 50% weight reduction in AM-built machine core. However increase in eddy currents, due to non-laminated dense structure was also reported [22,23], but this can be decreased significantly with the help of layered structure of different electrical resistivity. The layer-based manufacturing process of AM can also introduce a degree of anisotropy i.e., difference in electromagnetic properties, in build direction compared to other direction.…”

Section: Corementioning

confidence: 80%

A Review on Additive Manufacturing Possibilities for Electrical Machines

et al. 2021

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This paper presents current research trends and prospects of utilizing additive manufacturing (AM) techniques to manufacture electrical machines. Modern-day machine applications require extraordinary performance parameters such as high power-density, integrated functionalities, improved thermal, mechanical & electromagnetic properties. AM offers a higher degree of design flexibility to achieve these performance parameters, which is impossible to realize through conventional manufacturing techniques. AM has a lot to offer in every aspect of machine fabrication, such that from size/weight reduction to the realization of complex geometric designs. However, some practical limitations of existing AM techniques restrict their utilization in large scale production industry. The introduction of three-dimensional asymmetry in machine design is an aspect that can be exploited most with the prevalent level of research in AM. In order to take one step further towards the enablement of large-scale production of AM-built electrical machines, this paper also discusses some machine types which can best utilize existing developments in the field of AM.

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Section: Corementioning

confidence: 80%

A Review on Additive Manufacturing Possibilities for Electrical Machines

et al. 2021

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“…Additionally, annealing was done to enhance the magnetic characteristics. In order to do this, the toroid was heated for one hour at a temperature of 1150 C with a heating rate of 300 K/h, and then gradually cooled [43]. As the type of reluctance machine is most suited for PBF fabrication because needs one alloy powder, a fully assembled, fully functional axial flux switched rel was developed utilizing this technology.…”

Section: Stator and Rotor Core Of Reluctance Machinesmentioning

confidence: 99%

“…Additionally, annealing was done to enhance the magnetic characteristics. In order to do this, the toroid was heated for one hour at a temperature of 1150 C with a heating rate of 300 K/h, and then gradually cooled [43]. In addition to emphasizing the internal design and manufacture of electrical machines, the author of [44] showed a prototype of an induction machine that was manufactured employing additive manufacturing.…”

Section: Stator and Rotor Core Of Reluctance Machinesmentioning

confidence: 99%

Recent Trends in Additive Manufacturing and Topology Optimization of Reluctance Machines

2023

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Additive manufacturing (AM) or 3D printing has opened up new opportunities for researchers in the field of electrical machines, as it allows for more flexibility in design and faster prototyping, which can lead to more efficient and cost-effective production. An overview of the primary AM techniques utilized for designing electrical machines is presented in this paper. AM enables the creation of complex and intricate designs that are difficult or impossible to achieve using traditional methods. Topology Optimization (TO) can be used to optimize the design of parts for various purposes such as weight, thermal, material usage and structural performance. This paper primarily concentrates on the most recent studies of the AM and TO of the reluctance machines. The integration of AM with TO can enhance the design and fabrication process of magnetic components in electrical machines by overcoming current manufacturing limitations and enabling the exploration of new design possibilities. The technology of AM and TO both have limitations and challenges which are discussed in this paper. Overall, the paper offers a valuable resource for researchers and practitioners working in the field of AM and TO of electrical machines.

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“…The toroid was heated 300 K/h up to the temperature of 1150 • C and was annealed in a vacuum chamber at 1150 • C for one hour and then furnace cooled. Q detailed description of the printing procedure is presented in [24,25].…”

Section: Measurement Setupmentioning

confidence: 99%

Sliding Mean Value Subtraction-Based DC Drift Correction of B-H Curve for 3D-Printed Magnetic Materials

et al. 2021

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This paper presents an algorithm to remove the DC drift from the B-H curve of an additively manufactured soft ferromagnetic material. The removal of DC drift from the magnetization curve is crucial for the accurate estimation of iron losses. The algorithm is based on the sliding mean value subtraction from each cycle of calculated magnetic flux density (B) signal. The sliding mean values (SMVs) are calculated using the convolution theorem, where a DC kernel with a length equal to the size of one cycle is convolved with B to recover the drifting signal. The results are based on the toroid measurements made by selective laser melting (SLM)-based 3D printing mechanism. The measurements taken at different flux density values show the effectiveness of the method.

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Hysteresis Loss Evaluation of Additively Manufactured Soft Magnetic Core

Cited by 7 publications

References 19 publications

A Review on Additive Manufacturing Possibilities for Electrical Machines

A Review on Additive Manufacturing Possibilities for Electrical Machines

Recent Trends in Additive Manufacturing and Topology Optimization of Reluctance Machines

Sliding Mean Value Subtraction-Based DC Drift Correction of B-H Curve for 3D-Printed Magnetic Materials

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