Deep Penetration Welding with High-Power Laser under Vacuum

Katayama, Seiji; Abe, Yohei; Mizutani, Masami et al.

Transactions of JWRI, 2011, 40(1), 15-19

アクセス数:668件（2025-05-23 07:36 集計）

固定URL: https://doi.org/10.18910/8199

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タイトル
Deep Penetration Welding with High-Power Laser under Vacuum
著者
NRID
1000010144528 1000010144528
著者名
Katayama, Seiji
NRID
1000060402658 1000060402658
著者名
Abe, Yohei
著者名
Mizutani, Masami
NRID
1000070379105 1000070379105
著者名
Kawahito, Yousuke
キーワード等
Laser welding
High power laser
Disk laser
Deep penetration
Stainless steel
Aluminum alloy
Welding phenomena
抄録
The authors have developed a new chamber for laser welding under the low vacuum conditions achieved by using rotary pumps. High-power disk laser bead-on-plate welding was performed on Type 304 stainless steel and A5052 aluminum alloy plate at the powers of 10, 16 and 26 kW at various welding speeds under low vacuum. Sound welds of more than 50 and 70 mm in penetration depth could be produced in Type 304 at the pressure of 0.1 kPa, the speed of 0.3 m/min and the power of 16 kW and 26 kW, respectively. Similar penetration was achieved in A5052 aluminum alloy. Welding phenomena under low vacuum were also examined by observing the behavior of a keyhole inlet, a molten pool, melt flows and a plume ejected from a keyhole using high speed video cameras. Low interaction between a laser beam and a plume under low vacuum was confirmed by using the probe laser beam method.
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)
40(1)
ページ
15-19
刊行年月
2011-06
言語
英語
ハンドルURL
https://hdl.handle.net/11094/8199
DOI
https://doi.org/10.18910/8199
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.40 No.1 (2011-06)