Interaction the high-density pulse current with material in the zone of local conduction disturbance at the edge of a thin wall magnetic system

Adamyan, Yu.E.; Alekseev, D.; Chernenkaya, Liudmila V.; Krivosheev, S. I.; Magazinov, Sergey G.; Titkov, V. V.

doi:10.1109/megagauss.2018.8722688

Cited by 3 publications

(2 citation statements)

References 16 publications

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“…Apart from the process of material joining itself, the actual aim of MPW research is to increase the inductor efficiency and lifetime. For example, the conventional copper and bronze (CuBe2) inductors are not capable of repetitive (at least several hundred pulses per lifetime) generation of such fields [6][7][8]. Intensive thermomechanical stresses, especially Joule heating, in the surface layer of the inductor lead to the formation of cracks and its further destruction [9,10].…”

Section: Introductionmentioning

confidence: 99%

Development of Multi-part Field-Shapers for Magnetic-Pulse Welding Using Nanostructured Cu-Nb Composite

Zaytsev,

Krutikov,

Spirin

et al. 2024

Preprint

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Magnetic pulse welding (MPW) employs high pulsed magnetic field to accelerate parts against each other thus forming an impact joining. Single-turn tool coils and field-shapers (FS) used in MPW operate under the most demanding conditions: a magnetic field of 40-50 T with a period of tens of microseconds. For conventional copper and bronze coils intense thermo-mechanical stresses lead to rapid degradation of the working bore. This work is aimed to improve the efficiency of field-shapers and focused on development of 2- and 4-slit FS with nanocomposite Cu 18Nb wire brazed as FS inner current-carrying layer. The measured ratio of magnetic field to discharge current was 56.3 and 50.6 T/MA for 2- and 4-slit FS respectively. FEM calculations of magnetic field generation showed its 6-9% and 3% variation for 2- and 4-slit FS respectively. The results of copper tube compression have shown an ovality of 27% and 7% for 2- and 4-slit FS respectively. The measured deviation of weld joining length was 11% and 1.4% in 2- and 4-slit FS respectively. Compared to the previous experiments on the whole steel inductor, the novel FS showed significantly better results in terms of efficiency and homogeneity of the magnetic field.

show abstract

Section: Introductionmentioning

confidence: 99%

Development of Multi-part Field-Shapers for Magnetic-Pulse Welding Using Nanostructured Cu-Nb Composite

Zaytsev,

Krutikov,

Spirin

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…Apart from the material-joining process itself, the actual aim of MPW research is to increase inductor efficiency and lifetime. For example, conventional copper and bronze (CuBe2) inductors are not capable of the repetitive generation of such fields (generating at least several hundred pulses per lifetime) [6][7][8]. Intensive thermo-mechanical stresses, especially Joule heating, in the surface layer of the inductor lead to the formation of cracks and its further destruction [9,10].…”

Section: Introductionmentioning

confidence: 99%

Development of Multi-Part Field-Shapers for Magnetic Pulse Welding Using Nanostructured Cu-Nb Composite

Zaytsev,

Krutikov,

Spirin

et al. 2024

JMMP

View full text Add to dashboard Cite

Magnetic pulse welding (MPW) employs a strong pulsed magnetic field to accelerate parts against each other, thus forming an impact joint. Single-turn tool coils and field-shapers (FSs) used in MPW operate under the most demanding conditions, such as magnetic fields of 40–50 T with periods lasting tens of microseconds. With the use of conventional copper and bronze coils, intense thermo-mechanical stresses lead to the rapid degradation of the working bore. This work aimed to improve the efficiency of field-shapers and focused on the development of two- and four-slit FSs with a nanocomposite Cu 18Nb brazed wire acting as an inner current-carrying layer. The measured ratios of the magnetic field to the discharge current were 56.3 and 50.6 T/MA for the two- and four-slit FSs, respectively. FEM calculations of the magnetic field generated showed variations of 6–9% and 3% for the two- and four-slit FSs, respectively. The ovality percentages following copper tube compression were 27% and 7% for the two- and four-slit FSs, respectively. The measured deviations in the weld-joining length were 11% and 1.4% in the two- and four-slit FSs, respectively. Compared to the previous experiments on an entirely steel inductor, the novel FS showed significantly better results in terms of its efficiency and the homogeneity of its magnetic field.

show abstract

Fractal Character of the Conductor Destruction in the Zone of Local Increase of the Pulsed Current Density

Zhukov,

Krivosheev,

Magazinov

et al. 2023

2023 Seminar on Microelectronics, Dielectrics and Plasmas (MDP)

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Interaction the high-density pulse current with material in the zone of local conduction disturbance at the edge of a thin wall magnetic system

Cited by 3 publications

References 16 publications

Development of Multi-part Field-Shapers for Magnetic-Pulse Welding Using Nanostructured Cu-Nb Composite

Development of Multi-part Field-Shapers for Magnetic-Pulse Welding Using Nanostructured Cu-Nb Composite

Development of Multi-Part Field-Shapers for Magnetic Pulse Welding Using Nanostructured Cu-Nb Composite

Fractal Character of the Conductor Destruction in the Zone of Local Increase of the Pulsed Current Density

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