Dynamic Analysis of Welding Phenomena in High Power Electron Beam Welding

高功率电子束焊接焊接现象的动态分析

• 批准号: 02650530
• 负责人: TOMIE Michio
• 金额: $ 1.54万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1990
• 资助国家: 日本
• 起止时间: 1990 至 1991
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-02650530/
• 关键词: High Energy Density Electron Beam Welding; Ultra High Voltage Electron Beam Heat Source; Deep Pentration Welding; Welding of Thick Stainless Steel; Tandem Electron Beam Welding; Control of Molten Metal Flow; 高エネルギ-密度電子ビ-ム溶液; 厚板ステレンス鋼の溶接

[I] 5OOkV Ultra High Energy Density Electron Beam Welding1) High power electron beam of 10 - l40kW was generated successfully. Electron beam of a power of l40kW was extracted to a high vacuum welding chamber and was focused to a diameter of 1mm. Ultra high energy density electron beam of 17000kW/cm^2 was obtained.2) For one pass bead-on-plate welding at flat position with up to l40kW beam, good welding results of a penetration depth of over 200mm were obtained for very thick stainless steel plates. The dynamic behavior of molten metal was observed with video camera at 60 frames per second under various welding conditions.[II] 30kW Tandem Electron Beam Welding1) The molten metal flow inside specimen during electron beam welding was visualized and dynamically observed with transmission X-ray and small tungsten particle tracer.2) The molten metal flow under various welding conditions were observed for 30kW class Tandem Electron Beam welder. When the penetration depth was shallow, the molten metal moved along whole molten pool, while the penetration depth was deep, . the molten metal did not flow along whole molten pool.3) The molten metal flow along whole molten pool was generated by Tandem Electron Beam which changed the distribution of heat input, and the titanium filler material was uniformly mixed to the root of the bead.

[1] 5OOkV超高能量密度电子束焊接1)成功产生10 ~ 140kw的大功率电子束。将功率为l40kW的电子束提取到高真空焊接腔中，聚焦到直径为1mm的范围内。获得了17000kW/cm^2的超高能量密度电子束。2)采用最大功率为l40kW的横梁平位单道板对焊，对极厚不锈钢板的焊深可达200mm以上，焊接效果良好。用摄像机以每秒60帧的速度观察了不同焊接条件下熔融金属的动态行为。[II] 30kW串联电子束焊接1)利用透射x射线和小钨粒子示踪剂对电子束焊接过程中试样内部金属液流动进行了可视化和动态观察。2)对30kW级串列电子束焊机在不同焊接条件下的熔融金属流动进行了观察。当侵彻深度较浅时，熔融金属沿整个熔池移动，而侵彻深度较深时，。熔融金属没有沿整个熔池流动。3)通过串列电子束产生金属液沿整个熔池流动，改变了热输入分布，钛填充材料均匀混合到熔头根部。

项目成果

Michio TOMIE,Nobuyuki ABE and Yoshiak ARATA: "Characteristics of 500kV UltraーHigh Voltage Electron Beam" Transactions of JWRI. 19. 175-179 (1990)

Michio TOMIE、Nobuyuki ABE 和 Yoshiak ARATA：“500kV 超高压电子束的特性”JWRI 交易，19. 175-179 (1990)。

M. Tomie and N. Abe: "Generation of Ultra High Energy Density Electron Beam and Its Application to Welding" Handbook of '92 Latest High-Tech Processing, Chapter 2. Tekku Publishing Co.89-92 (1992)

M. Tomie 和 N. Abe：“超高能量密度电子束的产生及其在焊接中的应用”92 年最新高科技加工手册，第 2 章。Tekku Publishing Co.89-92 (1992)

M. Tomie, N. Abe and Y. Arata: "Characteristics of 600kV Class Ultra High Voltage Electron Beam Heat Source (Report II) -Deep Penetration by Flat Position Welding-" Trans. of JWRI. 19-2. 15-19 (1990)

M. Tomie、N. Abe 和 Y. Arata：“600kV 级超高压电子束热源的特性（报告 II）-平位焊接的深穿透-”Trans。

M. Tomie, N. Abe and Y. Arata: "Generation of High Energy Density Electron Beam and Its Application" Proc. Symposium '92 of Reserch Center for Ultra High Energy Density Heat Source. 31-36. (1992)

M. Tomie、N. Abe 和 Y. Arata：“高能量密度电子束的产生及其应用”Proc。

富江 通雄,阿部 信行,荒田 吉明: "500kV超高エネルギ-密度電子ビ-ムの発生と適用" 大阪大学溶接工学研究所超高エネルギ-密度熱源センタ-1992公開研究シンポジウムプロシ-ディング. 31-36 (1992)

Michio Tomie、Nobuyuki Abe、Yoshiaki Arata：“500kV超高能量密度电子束的产生和应用”大阪大学焊接研究所超高能量密度热源中心-1992年公共研究研讨会论文集31-36（1992）。