高压逆变电子束焊接电源研制及其焊接适用性研究  

Design of 150 kV/30 kW inverter power supply for EB machine and its welding applicability

作　　者：许海鹰[1] 左从进[1] 桑兴华[1] 付鹏飞[1] 

机构地区：[1]北京航空制造工程研究所高能束流加工技术重点实验室,北京100024

出　　处：《焊接》2017年第8期29-33,共5页Welding & Joining

基　　金：工信部基金资助项目

摘　　要：为了进一步提高电子束焊机工作的可靠性和稳定性,提高电子束加工质量,采用AC-DC-AC-DCAC-DC的拓扑电路和双闭环控制策略设计制造了高压加速电源、偏压电源与灯丝加热电源。将所研制高压逆变电源与150 kV/30 kW电子枪、真空系统等组成了一套电子束焊接设备,分别测试了该电子束焊接设备输出的高压、最大束流、焊接工艺参数一致性、最大焊接深度。试验结果表明,所研制的逆变电源高压输出达到150 kV,高压输出线性度较好;工艺参数一致性较好;最大束流达到200 mA;钛合金焊接深度达到100 mm。这表明所研制的高压逆变电子束焊接电源的焊接适用性良好。In order to acquire stable electron beam and enhance the quality of electron beam machine,the topology circuit of AC-DC-AC-DC-AC-DC and double closed loop control had been adopted to design high voltage power source,bias voltage power source and filament power source.The inverter power supply,150 kV EB gun,vacuum system and others control system were integrated to establish a set of EB machine.Besides the high voltage and the maximum EB current output had been detected,the uniformity of welding parameters and the weld depth also had been measured.Through the series of tests,the results show that not only the inverter power source has a good linearity of high voltage output,but also the maximum beam output is up to 200 mA.The welding depth of titanium alloy is up to 100 mm.The welding tests show that the EB machine has excellent welding applicability.

关 键 词：高压 逆变电源 电子束焊机 

分 类 号：TG439.3[金属学及工艺—焊接]