鉄蒸気および放射分布に及ぼすパルスアークの電流周波数の寄与

カテゴリ: 論文誌(論文単位)

グループ名: 【B】電力・エネルギー部門

発行日: 2012/08/01

タイトル(英語): Contribution for Iron Vapor and Radiation Distribution Affected by Current Frequency of Pulsed Arc

著者名: 下倉　卓也（東京都市大学 工学部 電気電子工学科），森　佑介（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），湯本　雅恵（東京都市大学 工学部 電気電子工学科）

著者名(英語): Takuya Shimokura (Department of Electrical and Electronics Engineering, Tokyo City University), Yusuke Mori (Department of Electrical and Electronics Engineering, Tokyo City University), Toru Iwao (Department of Electrical and Electronics Engineering, Tokyo City University), Motoshige Yumoto (Department of Electrical and Electronics Engineering, Tokyo City University)

キーワード: 数値解析，パルスアーク，金属蒸気，熱プラズマ，アーク溶接，放射パワー　　numerical simulation，pulsed arc，metal vapor，thermal plasma，arc welding，radiation power

要約(英語): Pulsed GTA welding has been used for improvement of stability, weld speed, and heat input control. However, the temperature and radiation power of the pulsed arc have not been elucidated. Furthermore, arc contamination by metal vapor changes the arc characteristics, e.g. by increasing radiation power. In this case, the metal vapor in pulsed GTA welding changes the distribution of temperature and radiation power as a function of time. This paper presents the relation between metal vapor and radiation power at different pulse frequencies. We calculate the Fe vapor distribution of the pulsed current. Results show that the Fe vapor is transported at fast arc velocity during the peak current period. During the base current period, the Fe vapor concentration is low and distribution is diffuse. The transition of Fe vapor distribution does not follow the pulsed current; the radiation power density distribution differs for high frequencies and low frequencies. In addition, the Fe vapor and radiation distribution are affected by the pulsed arc current frequency.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.132 No.8 （2012）

本誌掲載ページ: 718-727 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/ieejpes/132/8/132_718/_article/-char/ja/