Physical Phenomena and Porosity Prevention Mechanism in Laser-Arc Hybrid Welding

Katayama, Seiji; Naito, Yasuaki; Uchiumi, Satoru et al.

Transactions of JWRI, 2006, 35(1), 13-18

アクセス数:477件（2025-05-13 07:01 集計）

固定URL: https://doi.org/10.18910/12224

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タイトル
Physical Phenomena and Porosity Prevention Mechanism in Laser-Arc Hybrid Welding
著者
NRID
1000010144528 1000010144528
著者名
Katayama, Seiji
NRID
1000020180226 1000020180226
著者名
Naito, Yasuaki
著者名
Uchiumi, Satoru
著者名
Mizutani, Masami
キーワード等
Hybrid welding
YAG laser
TIG
MIG
Penetration
Melt flows
Bubbles
Porosity
Stainless steel
Aluminium alloy
抄録
Hybrid welding of stainless steels or aluminium alloys was performed with the heat sources of YAG laser and TIG, or YAG laser and MIG, respectively. The effects of welding conditions and melt flows on penetration depth, geometry and porosity formation were investigated with the X-ray transmission real-time observation method. Melt flows on penetration depth and geometry were consequently confirmed. Concerning porosity suppression, in TIG-YAG hybrid welding of stainless steel, no formation of bubbles was attributed to the absence of pores. On the other hand, disappearance of bubbles from the concave molten pool surface due to the arc pressure played an important role in reducing porosity in YAG-MIG hybrid welding of aluminium alloys at high arc currents.
出版者
大阪大学接合科学研究所
オオサカ ダイガク セツゴウ カガク ケンキュウジョ
Joining and Welding Research Institute, Osaka University
収録物名
Transactions of JWRI
巻(号)
35(1)
ページ
13-18
刊行年月
2006-07
言語
英語
ハンドルURL
https://hdl.handle.net/11094/12224
DOI
https://doi.org/10.18910/12224
PISSN
03874508
NCID
AA00867058
アクセス権
open access
出版タイプ
Version of Record
カテゴリ
紀要論文 Departmental Bulletin Paper
Transactions of JWRI / Vol.35 No.1 (2006-07)