双弧脉冲MIG焊嵌入式控制系统设计及试验分析

发布时间：2018-03-15 04:37

本文选题：双弧脉冲熔化极惰性气体保护焊　切入点：低能量焊接　出处：《焊接学报》2017年09期 　论文类型：期刊论文

【摘要】：双弧脉冲熔化极惰性气体保护焊(dual-arc pulsed MIG welding)是一种低能量输入的焊接方法,针对其过程中存在的主旁弧脉冲电流波形匹配以及耦合电弧稳定性的问题,分析并提出了以高性能数字信号处理器(DSP)为控制核心的嵌入式控制策略.在此基础上,进行了双弧脉冲MIG焊嵌入式控制系统的软硬件设计,可以通过编程灵活实现脉冲电流波形的时序控制和焊接过程控制的各种算法,并进行了铝合金-镀锌钢平板堆焊试验,在较低能量输入时得到了良好的焊缝效果.结果表明,该系统能够满足双弧脉冲MIG焊的控制要求,保证焊接过程的稳定进行,焊接效果良好.
[Abstract]:Dual-arc pulsed pulsed MIG welding is a low energy input welding method. The main side arc pulse current waveform matching and coupling arc stability problems exist in the process. The embedded control strategy with high performance digital signal processor (DSP) as the control core is analyzed and put forward. On the basis of this, the hardware and software design of the embedded control system for dual-arc pulse MIG welding is carried out. The sequential control of pulse current waveform and various algorithms of welding process control can be realized flexibly by programming. The experiments of aluminum alloy galvanized steel plate surfacing are carried out, and good weld effect is obtained when the energy input is low. The system can meet the control requirements of double arc pulse MIG welding, and ensure the stability of welding process, and the welding effect is good.
【作者单位】：曲阜师范大学大学工学院;兰州理工大学甘肃省有色金属新材料重点实验室;
【基金】：国家自然科学基金资助项目(51405262) 曲阜师范大学科技计划项目(xkj201406);曲阜师范大学实验室开放基金项目(SK201513)
【分类号】：TG409

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