摘要
针对CO2焊短路过渡飞溅产生的机理,以IGBT逆变弧焊电源为基础,通过对CO2焊接过程中最基本的动态参数——焊接电流、电弧电压信号的采集与分析,确定了短路过渡不同时期、不同阶段的信号源特征。利用检测信号来确定短路开始与结束的时刻,对C O2焊短路过渡实现精确的波形控制、减少飞溅、改善焊缝成形奠定基础。
Aim at spatter generation mechanism of CO2 arc welding short-circuit transfer based on the IGBT inverter welding power source, through acquisition and analysis of the most basic dynamic parameters -the welding current and arc voltage signal in CO2 welding process, identify the signal source characteristics at the different periods and different stages during short-circuit transfer process. By detecting signal to determine the start and the end time of short-circuit, these provide foundation to achieve precise waveform control of the short-circuit transfer process, reduce spatter and improve formation of weld in CO2 arc welding.
出处
《自动化与仪器仪表》
2012年第2期87-88,90,共3页
Automation & Instrumentation
基金
国家自然科学基金项目(50275028)
关键词
IGBT
逆变弧焊电源
CO2焊
短路过渡
动态参数
相关性
IGBT
inverter welding power source
CO2 welding
short circuiting transfer
dynamic parameter
correlation
