The Effect of Energy Parameters of Power Sources on the Structure and Properties of Permanent Joints at Manual Arc Welding; Metals; Vol. 14, iss. 7

The Effect of Energy Parameters of Power Sources on the Structure and Properties of Permanent Joints at Manual Arc Welding; Metals; Vol. 14, iss. 7

Bibliographic Details
Parent link:Metals.— .— Basel: MDPI AG
Vol. 14, iss. 7.— 2024.— Article number 759, 26 p.
Main Author: Ilyashchenko D. P. Dmitry Pavlovich
Corporate Author: National Research Tomsk Polytechnic University
Other Authors: Chinakhov D. A. Dmitriy Anatol'evich, Lavrova E. V. Elena Vladimirovna
Summary:Title screen
The study presents the results of the research into the effect of the dynamic properties of inverter and diode power sources of welding arc power supply on the stability of melting and transfer of electrode metal into the weld pool. The principal energy parameters of the power source include the rates of rise and fall of short-circuit current, the ratio of arc burning current to short-circuit current, and other related factors. It has been demonstrated that an increase in the rate of change of these parameters within one welding mode microcycle alters the properties of heat and mass transfer, increases the frequency of electrode metal droplet transfer, reduces the size of transferred droplets in the weld pool and the duration of their stay on the electrode end under the influence of the high temperature of the welding arc, and the duration of short circuits. The increase in the mass fraction of alloying elements at their transition from the coated electrode to the weld metal is demonstrated to depend on the rate of change of the main energy parameters of one welding mode microcycle of the inverter power source in comparison with the diode rectifier. An enhancement in the structural integrity and properties of permanent joints during welding has been observed when using an inverter power source for the welding arc with high dynamic properties.
Текстовый файл
Language:English
Published: 2024
Subjects:
электронный ресурс
труды учёных ТПУ
welding arc power source
welding mode microcycle
manual arc welding
steel
structure
properties of welded joints
Online Access:http://earchive.tpu.ru/handle/11683/132446
https://doi.org/10.3390/met14070759
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=673443

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