新型脉冲电子束焊接偏压电源设计

齐铂金; 徐国宁; 刘方军; 肖攀

新型脉冲电子束焊接偏压电源设计

北京航空航天大学机械工程及自动化学院, 北京 100191

详细信息

中图分类号: TG 439.3; TM 89
计量
- 文章访问数: 2188
- HTML全文浏览量: 209
- PDF下载量: 725
- 被引次数: 0
出版历程
- 收稿日期: 2011-11-30
- 网络出版日期: 2012-10-30

Pulsed electron beam welding grid power supply design

School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 开发了一种由偏压基值产生电路和偏压脉冲产生电路组成的新型脉冲电子束焊接偏压电源,该偏压电源装置能够实现直流偏压和脉冲偏压自由切换,即在同一套装置上既能够实现常规连续束流电子束焊接,又能够实现脉冲电子束流焊接.偏压基值产生电路控制偏压脉冲基值,偏压脉冲产生电路分别控制偏压脉冲峰值、偏压脉冲频率和偏压脉冲占空比.偏压电源的脉冲频率、占空比、脉冲基值和脉冲峰值均可调节,对应实现脉冲束流的脉冲频率、占空比和脉冲峰值调节.试验证明在平均束流焊透相同材料时,相比连续束流电子束焊接,脉冲电子束焊接热输入减少,焊缝宽度有减少趋势.
- 脉冲电子束焊接 /
- 偏压电源 /
- 脉冲束流
Abstract: A new pulsed electron beam welding grid power supply was developed, which includes gridbias base circuit and gridbias pulse circuit. The power supply can produce both direct current gridbias and pulse gridbias, in another word, it can realize not only direct current electron beam welding but also pulsed beam welding at one equipment. The gridbias base circuit controls gridbias pulse base, while the gridbias pulse circuit controls gridbias pulse peak, gridbias pulse frequency and gridbias duty ratio. The pulsed electron beam welding grid power supply can realize beam current pulsed welding, at the same time, gridbias pulse frequency, pulse duty ratio, pulse base value and pulse peak value can be adjusted continuously, and beam current pulse frequency and pulse base value can be adjusted correspondingly. The test proves that the pulsed electron beam welding impulsion effect made electron beam welding keyhole effect much more evident than direct current beam welding at the same beam current.
- pulsed electron beam welding /
- grid power supply /
- pulsed beam current

HTML全文

参考文献(6)

[1]	中国机械工程学会焊接学会.焊接手册[M].北京:机械工业出版社,2007:657 China Mechanical Engineering Society Welding Branch.Welding handbook[M].Beijing:Engineering Industry Press,2007:657(in Chinese)
[2]	张洪波,刘方军,左从进.一种新型脉冲电子束焊接用PWM逆变式栅偏压电源系统设计[J].航空制造技术,2004(增刊):188-191 Zhang Hongbo,Liu Fangjun,Zuo Congjin.Design of a pulsed gridbias supply with PWM in verter for pulsed electron beam welding[J].Aeronautical Manufacturing Technology,2004(Supplement):188-191(in Chinese)
[3]	Schultz H.Electron beam welding[M].Abington:Abington Publishing,1994:38
[4]	丘成茂.电子束焊接获得深焊效应的机理和方法[J].电工电能新技术,1994:1-10 Qiu Chengmao.The deep penetration welding principle and method of electron beam welding[J].Advanced Technology of Electrical Engineering and Energy,1994:1-10(in Chinese)
[5]	American Welding Society.Recommended practices for electron beam welding[M].Miami:Global Engineering Documents,1999
[6]	刘和平,王维俊,江渝,等.TMS320LF240x DSP C语言开发应用[M].北京:北京航空航天大学出版社,2003:1-10 Liu Heping,Wang Weijun,Jiang Yu,et al.TMS320LF240x DSP C language exploitation and application [M].Beijing:Beijing University of Aeronautics and Astronautics Press,2003:1-10(in Chinese)