| 旁路电源工作模式对Arcing-wire PAW电特性与滴过渡的影响 |
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| 引用本文： | 张瑞英,蒋凡,陈树君,张亮,门广强.旁路电源工作模式对Arcing-wire PAW电特性与滴过渡的影响[J].焊接学报,2017,38(2):41-46. |
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| 作者姓名： | 张瑞英 蒋凡 陈树君 张亮 门广强 |
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| 作者单位： | 1.北京工业大学 汽车结构部件先进制造技术教育部工程研究中心, 北京 100124 |
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| 基金项目： | 国家自然科学基金资助项目（No.51375021）；先进焊接与连接国家重点试验室开放课题研究基金资助项目（AWJ-16-M06）；国家科技重大专项资助项目（2014zx04001-171） |
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| 摘 要： | 基于电弧可分离性，以焊丝为导引电极建立分体等离子弧，研究不同旁路工作模式下焊接参数对熔滴过渡行为的影响.结果表明，旁路为恒流模式时，随着旁路电流的增加熔滴稳定快速过渡，随着送丝速度的增加过渡频率增加，但其达到8.2 m/min时会使焊丝来不及熔化；在熔滴过渡瞬间，旁路及等离子弧电压均发生明显波动但两者趋势相反，而旁路及等离子弧电流均无波动.旁路为恒压模式时，随着旁路电压及送丝速度的增加，熔滴稳定而快速地过渡，但旁路电压过大时会出现失稳现象；在熔滴过渡瞬间，旁路及等离子弧电压、旁路电流、甚至等离子电流都出现明显波动.
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| 关 键 词： | 分体等离子弧 旁路 熔滴过渡 恒压模式 恒流模式 |
| 收稿时间： | 2016/7/27 0:00:00 |
Influence of bypass power mode on electrical properties and droplet transition of arcing-wire PAW |
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| ZHANG Ruiying,JIANG Fan,CHEN Shujun,ZHANG Liang and MEN Guangqiang.Influence of bypass power mode on electrical properties and droplet transition of arcing-wire PAW[J].Transactions of The China Welding Institution,2017,38(2):41-46. |
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| Authors: | ZHANG Ruiying JIANG Fan CHEN Shujun ZHANG Liang and MEN Guangqiang |
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| Affiliation: | 1.College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China2.College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China;State Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China3.School of Materials Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China |
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| Abstract: | Based on separability of plasma arc, the twin-body plasma arc was established as the wire was the guided electrode. Combined with electrical signals and droplet transfer behavior of different welding parameters, the droplet transfer behavior under different bypass modes was analyzed. The results showed that as the bypass mode was constant current mode, the droplet achieved steady and rapid transition as the bypass current increased, the transition frequency increased as the wire feed speed increased. But when the wire feed speed was too fast, the wire passed through the plasma arc without formatting droplet. With the change of the bypass current and wire feed speed, the bypass voltage and the plasma arc voltage occurred significant fluctuations, but the bypass current and the plasma arc current remained stable, the bypass voltage increased as the plasma voltage dropped. As the bypass mode was constant voltage mode, droplet achieved stable and rapid transition as the bypass voltage and wire feed speed increased, losing its stability as the overloaded voltage was set. With the change of the bypass voltage and wire feed speed, the bypass current was increased as the bypass voltage increased, but the plasma arc voltage, the voltage bypass, the bypass current, and even the plasma current showed significant volatility. |
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| Keywords: | twin-body plasma arc bypass arc droplet transfer constant voltage mode constant current Mode |
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