INHERENT MAGNETIC FIELD OF DISCHARGE AT ELECTROEROSIVE PROCESSING
DOI:
https://doi.org/10.15587/1729-4061.2012.4574Keywords:
magnetic field, arc self-splitting, non-stationary discharges.Abstract
Electroerosive processing of stationary discharge in fluid crossflow is a famous technological process, but physical mechanism of inherent regulation of discharge and, in particular, the importance of magnetic field, had not been examined thoroughly. For the first time, the experimental research of magnetic fields of such discharge was carried out. The transducers were produced from ferromagnetic material, which changes their properties in magnetic field. There were also transducers that use Hall effect and formation of electromotive force under the influence of magnetic field. The measuring during the electric charge helped to establish the dependence of magnetic value from the current stress, dynamic fluid pressure and the distance between the transducer and the radiation source. The measurements were taken at current stress 25-450A, voltage 30 V, and statistic fluid pressure in pressurized cabin 0,5-1,5 MPa. Interelectrode gap was 0,1 mm. the diagrams of dependence of magnetic induction of discharge from the current strength and dynamic fluid pressure were drawn. Magnetic induction and intensity of discharge magnetic field during electroerosive processing is vastly higher than of electric arc of the same current strength in the air. Such magnetic field causes various magnetic-hydrodynamic phenomena in discharge area, as well as its heating and formation of new conducting plasma channels. The existence of powerful magnetic field of stationary arc discharge in fluid crossflow helps by the influence on the fluid flow discharge to manage its energy and spatial parameters and, correspondingly, to expand technological possibilities.References
- Носуленко В. И. Размерная обработка металлов электрической дугой // Электронная обработка материалов. – 2004. – № 3. – С. 15-22.
- Щетинина В. И., Щетинин С. В., Чапни Н. И., Щербина А.В. Влияние скорости сварки на магнитное поле сварочного тока // Автоматическая сварка. – 2002. – №2. – С. 14-17.
- Динамика электровзрыва в жидкости / Кривицкий Е.В. – Киев: Наук. думка, 1986. – 208 с.
- Устойчивость горения электрической дуги / П.А. Кулаков, О.Я. Нови-ков, А.Н. Тимошевский. – Новосибирск, Наука. Сиб. отд-ние, 1992, 199 с. – (Низкотемпературная плазма. Т. 5).
- Райзер Ю.П. Физика газового разряда: Учеб. руководство. – М.: Наука. Гл. ред. физ.-мат. лит., 1987. – 592 с., ил.
- Головко Л. Ф., Чумаченко О. С. Вплив власного магнітного поля на динаміку стаціонарного електричного розряду в поперечному потоці рідини при обробці листового металу // Вісник Кременчуцького державного політехнічного університету. - 2008. - № 2. – С. 83- 87 .
Downloads
How to Cite
Issue
Section
License
Copyright (c) 2014 Виктор Иванович Носуленко, Петр Николаевич Великий, Михаил Иванович Москаленко, Ольга Сергеевна Чумаченко
This work is licensed under a Creative Commons Attribution 4.0 International License.
The consolidation and conditions for the transfer of copyright (identification of authorship) is carried out in the License Agreement. In particular, the authors reserve the right to the authorship of their manuscript and transfer the first publication of this work to the journal under the terms of the Creative Commons CC BY license. At the same time, they have the right to conclude on their own additional agreements concerning the non-exclusive distribution of the work in the form in which it was published by this journal, but provided that the link to the first publication of the article in this journal is preserved.
A license agreement is a document in which the author warrants that he/she owns all copyright for the work (manuscript, article, etc.).
The authors, signing the License Agreement with TECHNOLOGY CENTER PC, have all rights to the further use of their work, provided that they link to our edition in which the work was published.
According to the terms of the License Agreement, the Publisher TECHNOLOGY CENTER PC does not take away your copyrights and receives permission from the authors to use and dissemination of the publication through the world's scientific resources (own electronic resources, scientometric databases, repositories, libraries, etc.).
In the absence of a signed License Agreement or in the absence of this agreement of identifiers allowing to identify the identity of the author, the editors have no right to work with the manuscript.
It is important to remember that there is another type of agreement between authors and publishers – when copyright is transferred from the authors to the publisher. In this case, the authors lose ownership of their work and may not use it in any way.
