Control of CO_2 arc welding spatter with IGBT inverter arc welding power source

IGBT逆变弧焊电源对CO2 焊接 飞溅的控制

In waveform control for CO 2 arc welding process arc burning consists of two constant current phases . The large constant current during prophase of arc burning can improve welding bead formation and the small constant current during anaphase of arc burning can decrease welding spatter .

在CO2焊波控法中，将燃弧分为两个恒流阶段，燃弧前期采用大电流控制可以改善焊缝成形，而在 短路 过渡前的燃弧后期用小 电流恒流控制可以减少 飞溅。

The researches on the droplet transfer of welding materials spatter and the arc parameter are always the hot issues of arc physical characteristic research of welding materials .

焊接材料的熔滴过渡、 飞溅及电弧电参数特征的研究一直是焊接材料电弧物理特性研究的热点。

The result show that it can solve the defect of bad welding seam and big welding spatter of the short transition gas metal are welding by controlling the welding current waveform and achieved the high-speed welding process .

试验结果表明，通过对焊接电流波形的控制，可有效解决短路过渡气体保护焊的焊缝 成形差及 焊接 飞溅大的缺点，实现高速焊过程。

The current waveform of the inverter power source is controlled by a microcomputer . The stability of arc and the formation of weld in underwater welding are improved while the spatter is reduced .

本系统通过单片微机实时控制焊接电流波形，在进行水下 短路 过渡 焊接时可以提高 焊接电弧稳定性，减少 飞溅，同时改善焊缝成型。

The appearance of weld is better and the welding process with low spatter is more stable when the arc is a critical one .

采用临界潜弧区域的 焊接规范参数施焊， 飞溅小， 工艺过程稳定，焊缝成形优良。

Arc welding spatter on acoustic signal amplitude has increased role .

焊接 飞溅对电弧声信号幅度有增大作用。

It has a low welding spatter and aesthetic formation of weld .

堆焊 过程 飞溅小，焊缝成型美观。

Through controlling the wave of IGBT inverter arc welding power source the welding current and voltage can be controlled and it comes true to decrease CO ( 2 ) arc welding spatter .

通过IGBT逆变电源波形控制，实现了对CO2气体保护 焊时的焊接电流与电压的控制，从而达到减少 飞溅的目的。

Investigation on correlation of welding arc sound with welding spatter

焊接电弧声与 飞溅的相关性研究

The result showed that when the content of Al-Mg alloy is less than 18 % The droplet transfer was steady with relatively small molten droplets and welding spatter was smaller too .

结果表明：当Al-Mg含量低于18%时，熔滴颗粒相对细小，沿着焊丝轴向平稳过渡， 焊接 飞溅较小。

The defects of big welding spatter and making bad welding seam form obstruct the popularization of CO2 welding short circuit transition .

在短路过渡的CO2焊接过程中其 飞溅大、焊缝成形差的缺点阻碍了它的推广应用。

In technology the difference reflects the lower stability of droplet transfer bigger welding metal spatter and worse shape of welding seam .

反应在工艺上就是 熔滴过渡稳定性差，金属 飞溅大，焊缝成形差。

Stability welding process welding spatter small .

焊接过程稳定， 焊接 飞溅小。

A new control system of MIG / MAG welder and a new method of reducing welding spatter effectively are brought in this paper as well as the comparison results with existing welder .

介绍了自行开发成功的一种MIG/MAG焊接电源控制系统，以及一种十分有效的降低 焊接 飞溅的新方法，并展示了跟市场现有焊机的对比实验结果。

Based on the feature of CO 2 short circuit arc welding this paper presents a new method of control of IGBT inverter power by single chip processor to reduce welding spatter and improve welding formation .

本文根据CO2短路过渡焊接过程的特点，提出了一种IGBT逆变电源的单片机控制方法，旨在降低 CO2 短路 过渡 焊接 的 飞溅和改善焊后成形。

Mechanism about the effect of dynamic behavior of welding rectifier on spatter

焊机动特性影响 焊接 飞溅的机理研究

In the process of spot welding nucleation and spatter can emit sound so the change rate of energy of sound is extracted as the second feature of sound .

点焊过程中的形核和 飞溅都会造成声音信号能量的变化，因此，提取声音的能量变化率作为声音信号的第二特征。

Effects of external characteristic of typical are welding power sources on the welding spatter was studied by the specific slope-controlled SCR are-welding rectifier .

利用特制的变结构晶闸管整流焊机，研究典型焊机外特性对 焊接 飞溅的影响；

Waveform control can avoid the welding spatter effectively .

采用波形控制可以有效地减少 焊接 飞溅的产生。

After theory analyse and practice experiment it is discovered that : it is feasible that manganese-silicon used in acid low carbon steel welding electrode silicon can promote manganese 's transition and decrease the welding spatter ;

经理论分析和实际验证发现：锰硅合金在酸性碳钢焊条中应用完全可行，硅能促进锰的过渡，且能减小 焊条 的 飞溅；

The testing results show that the developed self optimizing control system obviously improve the performance of CO 2 welding machine and reduce welding spatter .

样机试验结果表明，此智能控制系统能显著改善CO2焊机性能，降低 焊接 飞溅。

In this paper the cause and mechanism of welding spatter in short circuit transfer CO2 gas shielded arc welding are investigated and the current research and development status in this field is introduced .

阐述了CO2气体保护焊飞溅的产生原因，介绍了 各国在该领域的研究现状，详细分析了现存控制方法在原理上存在的问题， 归纳出 有效 降低 焊接 飞溅 的 关键。

An Investigation on the Relation Between the Welding Spatter and Peak Current

焊接 飞溅与峰值电流关系的研究

Optimized control of dynamic and static characteristics strong adaptability for electricity network fast dynamic response stable welding current little spatter good welding surface .

优化动静特性控制，抗网电波动能力强，动态特性优良， 焊接过程稳定， 飞溅少， 成形好。

In the welding the combined outer characteristic and the electronic reactor arc used to improve the welding stability and control the spatter .

在焊接期中采用复合外特性和电子电抗器以提高 焊接稳定性和抑制 飞溅。

To the especially structure and material welding performance of a spaceflight igniter the key welding problem is the spatter and strike fire phenomenon which is brought by high contact resistance .

前言：针对特殊结构和材料的焊接性能，指出目前的 焊接问题主要是 存在 飞溅和接触电阻过大而带来的“打火”现象；

The algebraic method described the appearance of weld welding spatter loss coefficient and slag detachability of weld is put forward and applied to the development of flux cored wires .

提出了表征焊缝金属成型、 焊接 飞溅率和焊缝金属脱渣率的数值方法，并应用于药芯焊丝的研制。

Carbon-dioxide arc welding had widely applications in the automotive and other fields but its relatively shallow penetration and obvious welding spatter in rivet welding limited its application in the automotive manufacturing .

CO2气体保护焊在汽车中的应用越来越多，但 因其 电铆 焊接时熔深浅、 飞溅 大等 缺点，限制了其在汽车制造中的进一步应用。

By means of this model we study the relation between the welding spatter and the peak current obtaining the theoretical formula to show the relationship of spatter loss coefficient and the peak current .

借助该模型，对 焊接 飞溅与峰值电流关系进行推导，得到了反映飞溅率与峰值电流关系的理论表达式。