Magnetic properties of SmCo5 alloy fabricated by laser sintering

Huang, Junfeng; Yung, Kam Chuen; Ang, Desmond Teck Chye

doi:10.1007/s10854-019-01475-x

Cited by 6 publications

(4 citation statements)

References 29 publications

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“…The H c of the obtained magnetic wires was 714 kA/m, and B r was 0.088 T (0.88 kG), which is shown in Figure 7a. Huang J et al [70] successfully prepared SmCo 5 cylindrical specimens using laser sintering technology and investigated the effect of the laser sintering process on the phase structure and magnetic properties of the magnets. It was found that the higher laser power makes the energy distribution in the sample uniform while enhancing the crystallization and magnetic properties of the sample.…”

Section: Additive Manufacturing Of Smco 5 Rare Earth Permanent Magnet...mentioning

confidence: 99%

Additive Manufacturing of Rare Earth Permanent Magnetic Materials: Research Status and Prospects

Chen,

Xiong,

2024

Metals

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With the rapid development of intelligent manufacturing, modern components are accelerating toward being light weight, miniaturized, and complex, which provides a broad space for the application of rare earth permanent magnet materials. As an emerging near-net-shape manufacturing process, additive manufacturing (AM) has a short process flow and significantly reduces material loss and energy consumption, which brings new possibilities and impetus to the development of rare earth permanent magnetic materials. Here, the applications of AM technology in the field of rare earth permanent magnets in recent years are reviewed and prospected, including laser powder bed fusion (LPBF), fused deposition modeling (FDM), and binder jetting (BJ) techniques. Research has found that the magnetic properties of AM Nd-Fe-B magnets can reach or even exceed the traditional bonded magnets. In addition, in situ magnetic field alignment, in situ grain boundary infiltration, and post-processing methods are effective in enhancing the magnetic properties of AM magnets. These results have laid a good foundation for the development of AM rare earth permanent magnets.

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Section: Additive Manufacturing Of Smco 5 Rare Earth Permanent Magnet...mentioning

confidence: 99%

Additive Manufacturing of Rare Earth Permanent Magnetic Materials: Research Status and Prospects

Chen,

Xiong,

2024

Metals

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“…In addition, the additive manufacturing of structural parts has also been considered in this project. The additive manufacturing of the hard magnetic parts has been discarded because, for the time being, except for very specific AM processes such as cold spray [37][38][39], the magnetic performance (coercivity, remanence) of the resulting magnets is far from that of conventional sintered rare earth magnets [40][41][42][43]. Additive manufacturing of copper coils has also not been considered due to the small size of the actuator and the high number of turns that the near-zero speed requires to achieve the desired voltage.…”

Section: Motor Brake and Resolvermentioning

confidence: 99%

Electric Aerospace Actuator Manufactured by Laser Powder Bed Fusion

Lizarribar,

Prieto,

Aristizabal

et al. 2023

Aerospace

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Recent advances in manufacturing methods have accelerated the exploration of new materials and advantageous shapes that could not be produced by traditional methods. In this context, additive manufacturing is gaining strength among manufacturing methods for its versatility and freedom in the geometries that can be produced. Taking advantage of these possibilities, this research presents a case study involving an electric aerospace actuator manufactured using additive manufacturing. The main objectives of this research work are to assess the feasibility of additively manufacturing electric actuators and to evaluate potential gains in terms of weight, volume, power consumption and cost over conventional manufacturing technologies. To do so and in order to optimise the actuator design, a thorough material study is conducted in which three different magnetic materials are gas-atomised (silicon iron, permendur and supermalloy) and test samples of the most promising materials (silicon iron and permendur) are processed by laser powder bed fusion. The final actuator design is additively manufactured in permendur for the stator and rotor iron parts and in 316L stainless steel for the housing. The electric actuator prototype is tested, showing compliance with design requirements in terms of torque production, power consumption and heating. Finally, a design intended to be manufactured via traditional methods (i.e., punching and stacking for the stator laminations and machining for the housing) is presented and compared to the additively manufactured design. The comparison shows that additive manufacturing is a viable alternative to traditional manufacturing for the application presented, as it highly reduces the weight of the actuator and facilitates the assembly, while the cost difference between the two designs is minimal.

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“…[ 12 ] Through SLS of presintered commercial powder, coercivity could be retained in the printed parts. [ 13 ] From (CoCuFeZr) 17 Sm 2 sintered magnets, it is well known that during a three‐step annealing procedure composed of homogenization, isothermal heat treatment, and slow cooling, a three‐phase precipitation nanostructure is formed in a self‐organized process inside μm‐scaled grains. [ 14,15 ] The nanostructure consists of pyramidal Fe‐rich rhombohedral 17:2 matrix elements, Cu‐rich hexagonal 5:1 cell walls and Zr‐rich lamellae.…”

Section: Introductionmentioning

confidence: 99%

Additive Manufacturing of Permanent Magnets Based on (CoCuFeZr)₁₇Sm₂

Goll

Trauter

Braun

et al. 2021

Physica Rapid Research Ltrs

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Lab‐scale additive manufacturing of (CoCuFeZr)17Sm2‐based powder is carried out to realize CoSm‐printed parts with hard magnetic properties. For manufacturing a special inert gas, process chamber for laser powder bed fusion is used. A three‐step annealing procedure analogous to sintered magnets is applied. This leads to a coercivity of 2.77 T, remanence of 0.78 T, and maximum energy density of 109.4 kJ m−3 for the printed parts. Compared with an isotropic sintered magnet of comparable composition and annealing procedure, the coercivity is of the same order. Due to the texture of the printed parts, the remanence is 24 % larger.

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Magnetic properties of SmCo5 alloy fabricated by laser sintering

Cited by 6 publications

References 29 publications

Additive Manufacturing of Rare Earth Permanent Magnetic Materials: Research Status and Prospects

Additive Manufacturing of Rare Earth Permanent Magnetic Materials: Research Status and Prospects

Electric Aerospace Actuator Manufactured by Laser Powder Bed Fusion

Additive Manufacturing of Permanent Magnets Based on (CoCuFeZr)₁₇Sm₂

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Magnetic properties of SmCo5 alloy fabricated by laser sintering

Cited by 6 publications

References 29 publications

Additive Manufacturing of Rare Earth Permanent Magnetic Materials: Research Status and Prospects

Additive Manufacturing of Rare Earth Permanent Magnetic Materials: Research Status and Prospects

Electric Aerospace Actuator Manufactured by Laser Powder Bed Fusion

Additive Manufacturing of Permanent Magnets Based on (CoCuFeZr)17Sm2

Contact Info

Product

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About

Additive Manufacturing of Permanent Magnets Based on (CoCuFeZr)₁₇Sm₂