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2. 发明公开

EP3244522A1 ULTRASONIC-FREQUENCY PULSED GMAW WELDING POWER SOURCE DEVICE 有权
标题翻译：超声波频率脉冲GMAW焊接电源装置
公开(公告)号：EP3244522A1
公开(公告)日：2017-11-15
申请号：EP17170042.0
申请日：2017-05-09
申请人： Beihang University
发明人： QI, Bojin , WANG, Qiang , CONG, Baoqiang , ZHANG, Wei
IPC分类号： H02M1/34 , B23K9/09 , H02M3/142
CPC分类号： H02M3/142 , B23K9/092 , B23K9/093 , H02M1/34
摘要： The present disclosure provides an ultrasonic-frequency hybrid pulse GMAW welding power source device, including a constant voltage source for providing a constant voltage to a BUCK-type main circuit, the BUCK-type main circuit, a constant current source for providing a constant current to an ultrasonic-frequency pulse current switching circuit, and the ultrasonic-frequency pulse current switching circuit, where the constant voltage source is connected to the BUCK-type main circuit; the constant current source is connected to the ultrasonic-frequency pulse current switching circuit; the BUCK-type main circuit is in parallel connection to the ultrasonic-frequency pulse current switching circuit; the BUCK-type main circuit is used for providing a first output current for welding, which is in the form of a direct current or pulses; the ultrasonic-frequency pulse current switching circuit is used for providing a second output current for welding, which is an ultrasonic-frequency pulse current. The device superposes the ultrasonic-frequency pulse current and the current in the form of a direct current or pulses, to improve the performance of droplet transfer in the conventional direct-current or pulse GMAW, thereby concentrating arc energy, greatly improving arc stability, and reducing the influence of arc blow.
摘要翻译：本发明提供了一种超声频率混合脉冲GMAW焊接电源装置，包括用于向BUCK型主电路提供恒定电压的恒压源，BUCK型主电路，用于提供恒定电流的恒流源超声波频率脉冲电流切换电路和超声波频率脉冲电流切换电路，其中恒压源连接到BUCK型主电路; 恒流源连接超声频脉冲电流开关电路; BUCK型主电路与超声波脉冲电流切换电路并联， BUCK型主电路用于提供用于焊接的第一输出电流，其为直流或脉冲形式; 超声波频率脉冲电流切换电路用于提供用于焊接的第二输出电流，其是超声频率脉冲电流。该装置以直流或脉冲形式叠加超声频率脉冲电流和电流，以提高常规直流或脉冲GMAW中液滴传输的性能，从而集中电弧能量，极大地提高电弧稳定性，并且减少电弧放电的影响。

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