Achieving environment-friendly spherical polycrystalline diamond magnetic abrasives via plasma molten metal powders bonding with hard materials

Liu, Guangxin; Zhao, Yugang; Li, Zhihao; Yu, Hanlin; Cao, Chen; Meng, Jianbing; Zhang, Haiyun; Zhao, Chuang

doi:10.1016/j.ceramint.2023.05.097

Cited by 4 publications

(1 citation statement)

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“…At present, we have successfully prepared three kinds of magnetic abrasives, iron-based alumina [ 27 ], iron-based diamond [ 28 ], and iron-based cubic boron nitride [ 29 ], by using the plasma molten metal powder and powder jetting method with exciting results. The prepared magnetic abrasives were successfully applied in the inner wall polishing of ultra-fine and long vascular stent tubing, etc.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Synthesis, Characterization, and Finishing Applications of Spherical Al2O3 Magnetic Abrasives via Plasma Molten Metal Powder and Powder Jetting

Wang,

Zhang,

Meng

et al. 2024

Micromachines

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Magnetic abrasive finishing (MAF) is an efficient finishing process method using magnetic abrasive particles (MAPs) as finishing tools. In this study, two iron-based alumina magnetic abrasives with different particle size ranges were synthesized by the plasma molten metal powder and powder jetting method. Characterization of the magnetic abrasives in terms of microscopic morphology, phase composition, magnetic permeability, particle size distribution, and abrasive ability shows that the magnetic abrasives are spherical in shape, that the hard abrasives are combined in the surface layer of the iron matrix and remain sharp, and that the hard abrasives combined in the surface layer of the magnetic abrasives with smaller particle sizes are sparser than those of the magnetic abrasives with larger particle sizes. The magnetic abrasives are composed of α-Fe and Al2O3; the magnetic permeability of the magnetic abrasives having smaller particle sizes is slightly higher than that of the magnetic abrasives having larger particle sizes; the two magnetic abrasives are distributed in a range of different particle sizes; the magnetic abrasives have different magnetic permeabilities, which are higher than those of the larger ones; both magnetic abrasives are distributed in the range of smaller particle sizes; and AZ31B alloy can obtain smaller surface roughness of the workpiece after the grinding process of the magnetic abrasives with a small particle size.

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Section: Introductionmentioning

confidence: 99%