溶融池内の電磁力に及ぼすパルスアーク外周部の金属蒸気量の寄与

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: 2018/11/01

タイトル(英語): Contribution of Metal Vapor Mass at Periphery Part of Pulsed Arc to Electromagnetic Force in Weld Pool

著者名: 田中　達朗（東京都市大学 工学部電気電子工学科），真栄田　義史（東京都市大学 工学部電気電子工学科），山本　真司（東京都市大学 工学部電気電子工学科），岩尾　徹（東京都市大学 工学部電気電子工学科）

著者名(英語): Tatsuro Tanaka (Department of Electrical and Electronic Engineering, Faculty of Engineering, Tokyo City University), Yoshifumi Maeda (Department of Electrical and Electronic Engineering, Faculty of Engineering, Tokyo City University), Shinji Yamamoto (Dep

キーワード: 電磁熱流体シミュレーション，パルスアーク，金属蒸気量，電磁力，電流密度　　electromagnetic thermal fluid simulation，pulsed arc，metal vapor mass，electromagnetic force，current density

要約(英語): The arc welding has been used in various welding methods because it is inexpensive and high strength after welding. However, it is a problem that accidents such as collapse of the bridge occur because of the welding defects. The welding of low cost and high productivity is required without the welding defects. The pulsed TIG welding is inexpensive and capable of high quality welding. The electromagnetic force contributing to penetration changes because the transient response of arc temperature and iron vapor generated from anode occurs. However, the analysis of pulsed TIG welding with metal vapor has been elucidated only metal vapor concentration near anode with transient phenomenon and heat flux. Thus, the theoretical elucidation of penetration depth with control factor has not been researched. In this paper, the contribution of metal vapor mass at the periphery part of pulsed arc to the electromagnetic force in the weld pool is elucidated. As a result, the iron vapor mass at periphery part decreased with increasing the frequency. The iron vapor was stagnated at axial center within one cycle. The electromagnetic force to the penetration depth direction in weld pool increased at axial center. Therefore, the metal vapor mass at periphery part plays an important role for the electromagnetic force increment at axial center.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.138 No.11 （2018） 特集：各種プラズマ計測法の進展とその応用

本誌掲載ページ: 562-569 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/138/11/138_562/_article/-char/ja/