Advances in small-scale resistance spot welding of the Ni-15 %Fe-4 %Mo-1 %Mn permalloy in the production of low-noise ring cores for fluxgate magnetometers; Journal of Magnetism and Magnetic Materials; Vol. 597

Advances in small-scale resistance spot welding of the Ni-15 %Fe-4 %Mo-1 %Mn permalloy in the production of low-noise ring cores for fluxgate magnetometers; Journal of Magnetism and Magnetic Materials; Vol. 597

Dettagli Bibliografici
Parent link:Journal of Magnetism and Magnetic Materials.— .— Amsterdam: Elsevier Science Publishing Company Inc.
Vol. 597.— 2024.— Article number 172011, 24 p.
Ente Autore: Национальный исследовательский Томский политехнический университет
Altri autori: Butsykin S. E. Sergey Eduardovich, Slobodyan M. S. Mikhail Stepanovich, Strelkova I. L. Irina Leonidovna, Klimenov V. A. Vasily Aleksandrovich, Elkin M. A. Maxim, Gordynets A. S. Anton Sergeevich, Kiselev A. S. Aleksey Sergeevich
Riassunto:Title screen
The aim of this study was to assess the possibility of improving control of small-scale resistance spot welding (SSRSW) of the Ni-15 %Fe-4 %Mo-1 %Mn permalloy in the production of low-noise ring cores for fluxgate magnetometers. It was found that the range of the optimal current–time parameters (weld lobe) was within current amplitudes of 1–2 kA and pulse durations of 6–14 ms, which allowed to form sound nuggets with sufficient diameters but without expulsions in most cases. A preheating stage (a pulse with an amplitude of about 1 kA and a duration of 3–4 ms) had a positive effect on the stability of both dimensions and mechanical characteristics of the investigated nuggets. A decrease in the solidification rate slightly improved the stability of tensile shear strength values of the SSRSW joints despite the absence of fundamental differences in the microstructure and phase composition of the weld metals. To determine the reliability of predicting the quality of the SSRSW joints by assessing dynamic resistances measured during the formation of nuggets, a comparative statistical analysis of their diameters and the tensile shear strength values was carried out. The obtained results did not reveal any strong correlation between these parameters.
Текстовый файл
AM_Agreement
Lingua:inglese
Pubblicazione: 2024
Soggetti:
электронный ресурс
труды учёных ТПУ
Permalloy
Resistance spot welding
Current profiles
Microstructure
Phase composition
Mechanical properties
Accesso online:https://doi.org/10.1016/j.jmmm.2024.172011
Natura: Elettronico Capitolo di libro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=672611

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