Zaytsev, E.; Krutikov, V.; Spirin, A.; Paranin, S. Development of Multi-Part Field-Shapers for Magnetic Pulse Welding Using Nanostructured Cu-Nb Composite. J. Manuf. Mater. Process.2024, 8, 97.
Zaytsev, E.; Krutikov, V.; Spirin, A.; Paranin, S. Development of Multi-Part Field-Shapers for Magnetic Pulse Welding Using Nanostructured Cu-Nb Composite. J. Manuf. Mater. Process. 2024, 8, 97.
Zaytsev, E.; Krutikov, V.; Spirin, A.; Paranin, S. Development of Multi-Part Field-Shapers for Magnetic Pulse Welding Using Nanostructured Cu-Nb Composite. J. Manuf. Mater. Process.2024, 8, 97.
Zaytsev, E.; Krutikov, V.; Spirin, A.; Paranin, S. Development of Multi-Part Field-Shapers for Magnetic Pulse Welding Using Nanostructured Cu-Nb Composite. J. Manuf. Mater. Process. 2024, 8, 97.
Abstract
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.
Keywords
magnetic pulse welding; field-shaper; nanostructured Cu-Nb composite
Subject
Engineering, Electrical and Electronic Engineering
Copyright:
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