高エネルギ密度ビ-ム溶接におけるキ-ホ-ル形成限界について-レ-ザ溶接現象のモデル化(第2報)

• 松廣 克之

  住友金属工業(株)

• 稲葉 洋次

  住友金属工業(株)

• 黄地 尚義

  大阪大学工学部

• 村上 英次

  東芝

書誌事項

タイトル別名

• Study on Keyhole Formation of Laser Welding-Study on Modeling of Laser Welding(Part 2)

抄録

This paper describes the effect of evaporation on laser welding, especially on the keyhole formation. In order to investigate the evaporation, a numerical model of evaporation at the molten pool surfase of laser welding is developed. The effect of evaporation on laser welding is numerically analysed by the model and the numerical result has been compared with the experiment. This paper has been summarized as follows.(1) It is made clear by the numerical results that the molten pool geometry in laser welding has been affected remarkably by the evaporation process.(2) Numerical results show that the evaporation on molten pool surface produces the recoil pressure and a keyhole is formed by the process.(3) A calculated critical condition of keyhole has been compared with experiments and a satisfactory result has been obtained.

収録刊行物

• 溶接学会論文集 : quarterly journal of the Japan Welding Society

  溶接学会論文集 : quarterly journal of the Japan Welding Society 13 (2), 218-222, 1995-05-05

  社団法人溶接学会

キーワード

• laser welding
• evaporation
• keyhole
• recoil pressure
• heat transfer
• finite difference method

詳細情報

• CRID: 1573105977206809856
• NII論文ID: 110003423397
• NII書誌ID: AN1005067X
• ISSN: 02884771
• 本文言語コード: ja
• データソース種別:
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