雑誌ブラウズ
雑誌 全て
大阪大学 刊行物
ランキング
アクセスランキング
ダウンロードランキング
博士論文のみをさがす
リポジトリ登録支援システム
附属図書館
このアイテムのアクセス数:
79
件
(
2022-07-08
01:36 集計
)
このアイテムへのリンクには次のURLをご利用ください:http://hdl.handle.net/11094/6515
閲覧可能ファイル
ファイル
フォーマット
サイズ
閲覧回数
説明
jwri35_01_09
pdf
285 KB
120
論文情報
タイトル
Characteristics of a Co₂ Shielded Gas Tungsten Arc
著者
Tanaka, Manabu
Tanaka, Manabu
Tashiro, Shinichi
Tashiro, Shinichi
Kashima, Takayuki
Kashima, Takayuki
Murphy, Anthony, B.
Murphy, Anthony, B.
Lowke, John, J.
Lowke, John, J.
キーワード等
CO₂ gas
Thermal plasma
Arc
Heat source
Materials processing
Low cost
High productivity
抄録
In order to develop a novel heat source for materials processing with low costs and high productivity in comparison with the TIG arc, the characteristics of a CO₂ gas shielded plasma arc are studied. A double gas shielded system which consists of CO₂ gas and inert gas is employed for the plasma arc torch, so avoiding the consumption of tungsten electrode, and then achieves equivalent arc stability to a TIG arc for 1800 seconds operation. The arc voltage of the CO₂ gas shielded plasma arc in the conditions of arc current 150 A and arc gap 3 mm is about 19 V, which is much higher than the 12 V of a TIG arc. The CO₂ gas clearly constricts the arc and the maximum heat intensity at the anode surface in the CO₂ gas shielded plasma arc becomes about 10 times larger than that of the TIG arc. The penetration depth of stainless steel melted by the CO₂ gas shielded plasma arc is much larger than that for the argon TIG arc. It is concluded that the greater heating power of the CO₂ gas shielded plasma arc due to the arc constriction remarkably contributes to the high productivity of materials processing.
公開者
大阪大学接合科学研究所
公開者の別表記
Joining and Welding Research Institute, Osaka University
公開者 (ヨミ)
オオサカ ダイガク セツゴウ カガク ケンキュウジョ
掲載誌名
Transactions of JWRI
巻
35
号
1
開始ページ
9
終了ページ
12
刊行年月
2006-07
ISSN
03874508
NCID
AA00867058
URL
http://hdl.handle.net/11094/6515
言語
英語
カテゴリ
紀要論文 Departmental Bulletin Paper
Transactions of JWRI / Vol.35 No.1 (2006-07)
論文詳細を表示
著者版フラグ
publisher
NII資源タイプ
紀要論文
ローカル資源タイプ
紀要論文
dcmi資源タイプ
text
DCTERMS.bibliographicCitation
Transactions of JWRI.35(1) P.9-P.12
DC.title
Characteristics of a Co₂ Shielded Gas Tungsten Arc
DC.creator
Tanaka, Manabu
Tashiro, Shinichi
Kashima, Takayuki
Murphy, Anthony, B.
Lowke, John, J.
DC.publisher
大阪大学接合科学研究所
DC.language" scheme="DCTERMS.RFC1766
英語
DCTERMS.issued" scheme="DCTERMS.W3CDTF
2006-07
DC.identifier" scheme="DCTERMS.URI
http://hdl.handle.net/11094/6515
DC.subject
CO₂ gas
Thermal plasma
Arc
Heat source
Materials processing
Low cost
High productivity
DCTERMS.abstract
In order to develop a novel heat source for materials processing with low costs and high productivity in comparison with the TIG arc, the characteristics of a CO₂ gas shielded plasma arc are studied. A double gas shielded system which consists of CO₂ gas and inert gas is employed for the plasma arc torch, so avoiding the consumption of tungsten electrode, and then achieves equivalent arc stability to a TIG arc for 1800 seconds operation. The arc voltage of the CO₂ gas shielded plasma arc in the conditions of arc current 150 A and arc gap 3 mm is about 19 V, which is much higher than the 12 V of a TIG arc. The CO₂ gas clearly constricts the arc and the maximum heat intensity at the anode surface in the CO₂ gas shielded plasma arc becomes about 10 times larger than that of the TIG arc. The penetration depth of stainless steel melted by the CO₂ gas shielded plasma arc is much larger than that for the argon TIG arc. It is concluded that the greater heating power of the CO₂ gas shielded plasma arc due to the arc constriction remarkably contributes to the high productivity of materials processing.
citation_title
Characteristics of a Co₂ Shielded Gas Tungsten Arc
citation_author
Tanaka, Manabu
Tashiro, Shinichi
Kashima, Takayuki
Murphy, Anthony, B.
Lowke, John, J.
citation_publisher
大阪大学接合科学研究所
citation_language
英語
citation_date
2006-07
citation_journal_title
Transactions of JWRI
citation_volume
35
citation_issue
1
citation_firstpage
9
citation_lastpage
12
citation_issn
03874508
citation_public_url
http://hdl.handle.net/11094/6515
citation_keywords
CO₂ gas
Thermal plasma
Arc
Heat source
Materials processing
Low cost
High productivity