双DSP并行控制的超音频脉冲TIG焊机及其适用性  

Dual DSPs Parallel Controlling Ultra-aduio Frequency Pulsed TIG Welding Machine and Its Applicability

作　　者：黄松涛[1] 齐铂金[2] 许海鹰[2] 焦向东[1] 

机构地区：[1]北京石油化工学院,北京102617 [2]北京航空航天大学,北京100191

出　　处：《中国机械工程》2010年第4期486-490,共5页China Mechanical Engineering

摘　　要：基于两套桥式逆变直流回路并联调制模式的新型主回路,采用双数字信号处理器并行全数字控制方式研制了新型大功率超音频直流脉冲TIG焊机。该焊机脉冲电流的上升沿和下降沿变化速率不小于50A/μs,脉冲频率可达30kHz以上。适用性试验表明,该焊机产生的超音频脉冲电弧具有电弧超声作用和电弧高频效应,对提高焊缝接头质量与性能有明显作用。Based on two sets of bridge model inverter DC main circuit parallel modulation mode,a high power ultra-audio frequency DC pulsed TIG welding machine was developed successfully by using dual DSPs parallel processing digital controlling way.The transition rate of the pulsed current in rising and falling edge of the welding machine is more than 50A/μs,and the pulsed frequency can reach to 30kHz and above.Applicability experimentations indicate that the ultra-audio frequency DC pulsed arc generated by the TIG welding machine is provided with arc-ultrasound effectiveness and with arc high frequency effect.The welding machine has a direct influence on enhancing the quality and performance of the welding joint.

关 键 词：超音频脉冲 TIG焊 并行控制 电弧超声 

分 类 号：TG434[金属学及工艺—焊接]