アーク偏向現象の解明に向けた横風吹付け時における横磁界が及ぼすアークの流速分布の解析

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2020/05/01

タイトル(英語): Analysis of Flow Velocity Distribution in Arc Affected by Transverse Magnetic Field with Lateral Gas Flow for Elucidation of Arc Deflection

著者名: 真栄田　義史（東京都市大学 工学部 電気電子通信工学科），岩尾　徹（東京都市大学 工学部 電気電子通信工学科）

著者名(英語): Yoshifumi Maeda (Department of Electrical, Electronics and Communication Engineering, Faculty of Engineering, Tokyo City University), Toru Iwao (Department of Electrical, Electronics and Communication Engineering, Faculty of Engineering, Tokyo City University)

キーワード: 3次元直交座標系，アーク偏向，横風，温度分布，電磁力　　3-D rectangular coordinate system，arc deflection，lateral gas，temperature distribution，electromagnetic force

要約(英語): Gas metal arc welding is used widely because this is the high efficient and quality joining technology. However, the welding defect occurs because of the arc deflection caused by the strong wind. The preventive technology of arc deflection is important. It is possible that the arc deflection is prevented using Lorentz force caused by the transverse magnetic field against lateral gas. The arc deflection has not been elucidated because the measurement of three-dimensionally asymmetric temperature and the axial flow velocity distribution of arc is difficult at the only experiment. The 3-D numerical analysis is necessary to elucidate flow velocity affected by Lorentz force. In this study, the flow velocity distribution in the arc affected by the transverse magnetic field with the lateral gas flow for the elucidation of arc deflection was analyzed. The arc deflection was calculated with lateral gas flow and changing the transverse magnetic flux density using the electromagnetic thermal fluid (EMTF) simulation. As a result, the difference in arc deflection distance from the experiment was 0.4mm with a transverse magnetic flux density, indicating a similar tendency. In addition, the axial flow velocity increased and the radial flow velocity decreased with the electromagnetic force in the opposite direction against crosswind. Along with this, the arc deflection distance decreased.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.140 No.5 （2020）

本誌掲載ページ: 269-275 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/140/5/140_269/_article/-char/ja/