Study on High Power Tandem Electron Beam Welding

高功率串联电子束焊接研究

• 批准号: 60850139
• 负责人: TOMIE MICHIO
• 金额: $ 3.26万
• 依托单位: OSAKA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research
• 财政年份: 1985
• 资助国家: 日本
• 起止时间: 1985 至 1986
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-60850139/
• 关键词: Tandem Electron Beam welding; High Speed Welding; High Quality Welding; Deep penetration Welding; Suppression of Defects; Transmission X-ray Observation; 高速度撮影; ビーム特性; スリット法

1. Development of high power Tandem Electron Beam welding apparatusMaximum power of the 1st beam: 30 kW (70 kV, 430 mA)Maximum power of the 2nd beam: 6 kW (60 kV, 100 mA)Crossing angle: 25 degrees2. Beam characteristics measured with high speed deflector and slit methodDiameter of the 1st beam: 2 mm; Energy density: 9.5 x <10^2> kW/ <cm^2>Diameter of the 2nd beam: 0.5 mm; Energy density: 7.6 x <10^2> kW/ <cm^2>3. Result obtained slit method and AB test shows good agreement.4. Application of TEB welding to thick SM41 steelA- and R- porosities were completely suppressed. Bead width was not enlarged by TEB welding.5. Application of TEB welding to high speed and high quality welding of SUS304 steelUp to 6 m/min, sound bead was obtained without any spatter, humping and undercut.6. Observation of beam hole behavior and molten metal flow were observed during welding. Suppression mechanism of porosity by TEB welding was clarified.7. Application of TEB welding to Aluminum dicastSound bead was obtained by only single pass TEB welding.

1.大功率双束电子束焊接设备的开发第一束最大功率：30 kW（70 kV，430 mA）第二束最大功率：6 kW（60 kV，100 mA）交叉角：25度2.用高速偏转器和狭缝法测量的光束特性第一束的直径：2 mm;能量密度：9. 5 x <10 ^2> kW/ <cm ^2>第二束的直径：0. 5 mm;能量密度：7. 6 x <10 ^2> kW/ <cm ^2>3。狭缝法与AB试验结果吻合较好. TEB焊接厚SM 41钢的应用完全抑制了A型和R型气孔。TEB焊焊缝宽度没有增大. TEB焊在SUS 304钢高速高质量焊接中的应用速度可达6 m/min，焊缝无飞溅、驼峰和咬边.在焊接过程中观察束孔行为和熔融金属流动。阐明了TEB焊接抑制气孔的机理. TEB焊在铝合金薄板上的应用TEB焊单道焊可获得良好的焊缝.

项目成果

Y. Arata: "Tandem Electron Beam Welding (Report VI)" Transaction of JWRI. 15(1). 21-25 (1986)

Y. Arata：“串联电子束焊接（报告 VI）”JWRI 交易。

Trans.JWRI. 15-1. (1986)

跨 JWRI。

Y.Arata: Transaction of JWRI. 15(1). 21-25 (1986)

Y.Arata：JWRI 交易。

Y.Arata: Transaction of JWRI. 15(2). 35-39 (1986)

Y.Arata：JWRI 交易。

Y.Arata: Proceeding of International Conference on Electron and Laser Beam Welding. 345-346 (1986)

Y.Arata：电子束和激光束焊接国际会议论文集。