Magnetic Pulse Welding of the “Tube – Plug” Pair of STS410 Steel

Krutikov, V. I.; Paranin, S. N.; Ivanov, V. P.; Spirin, A. V.; Koleukh, D. S.; Lee, J.-G.; Lee, M.-K.; Rhee, Chang Kyu

doi:10.17877/de290r-855

Cited by 2 publications

(3 citation statements)

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“…The torn-off ends of the plugs indicate a slightly excessive magnetic pressure during MPW, however, this did not affect the symmetry of the processed samples. In previous work, we joined STS410 steel parts in an all-steel single-turn inductor without a field-shaper [34]. In comparison to average joining length between the samples welded at 8.5 kV in [34] the samples in the present work are more symmetrical with 4-slit field-shaper, which can be seen from weld lengths relative difference in Table 3.…”

Section: Mpw Experimentsmentioning

confidence: 53%

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.

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Section: Mpw Experimentsmentioning

confidence: 53%

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

“…In previous work, we joined STS410 steel parts in an all-steel single-turn inductor without a field-shaper [33]. In comparison to the average joining length between samples welded at 8.5 kV in [33], the samples obtained in the present work with a four-slit fieldshaper are more symmetrical, which can be seen from the relative differences in weld length in Table 3. Magnetic pulse welding experiments have shown the significant effect of magnetic field uniformity on quality.…”

Section: Mpw Experimentsmentioning

confidence: 55%

“…A 0.5 mm thick copper driver was used to more efficiently transform the magnetic field energy into the kinetic energy of the steel tube. The plug-tube-driver configuration replicated a configuration used in our previous work in order to determine differences in joint quality associated with inductor system design [33]. To investigate the impact of magnetic field inhomogeneity on the quality of the welded joint, the parts were cut along the axis in the planes with the maximum and minimum field amplitudes.…”

Section: Magnetic Pulse Tube Forming and Weldingmentioning

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

Magnetic Pulse Welding of the “Tube – Plug” Pair of STS410 Steel

Cited by 2 publications

References 0 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

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