Study of the wire resistance in gas metal arc welding

Study of the wire resistance in gas metal arc welding
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熔化极气体保护焊焊丝电阻的研究

DOI:
10.1088/1361-6463/aaf5bb
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发表时间:
2019
期刊:
Journal of Physics D: Applied Physics
影响因子:
--
通讯作者:
Lozano
Lozano
中科院分区:
--
文献类型:
--
作者:
Kozakov;Uhrlandt;Reisgen;Willms;Sharma;Lozano

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本研究的主要目的是研究气体保护金属极电弧焊(GMAW)过程中焊丝的温度和电阻,因为焊丝加热在相当大的程度上有助于焊接过程的功率平衡。作为参考,研究了低碳钢的典型脉冲GMAW工艺,其中固定送丝速度为4 m min-1,但改变自由丝长度和改变脉冲电流。三种方法已被应用于比较:首先,固体和熔融线部分的表面温度已被测量与红外摄像机和双色高温计与高速记录,分别,和线电阻已被确定的基础上导线的几何形状和温度依赖的电导率。其次,用电探针测量了接触管内实心导线和导线触头的电阻。第三,短路事件连同表面温度测定已被用于估计导线电阻。此外,在特定的加热装置中,系统地测量了相应导线的温度依赖性电导率。
The main aim of this investigation is to study the temperature and electrical resistance of the wire during gas metal arc welding (GMAW), because the wire heating contributes to a considerable extent to the power balance of the welding processes. As a reference, a typical pulsed GMAW process of mild steel with fixed wire feed speed of 4 m min− 1 but varying free wire length and varying pulse current has been investigated. Three approaches have been applied for comparison: firstly, the surface temperature of the solid and molten wire parts has been measured with an infrared camera and a two-colour pyrometer with high-speed recording, respectively, and the wire resistance has been determined based on wire geometry and temperature dependent conductivity. Secondly, the resistance of the solid wire and the wire contact in the contact tube has been measured by an electrical probe. Thirdly, short circuit events together with surface temperature determination have been used to estimate the wire resistance. In addition, the temperature dependent conductivity of the corresponding wires has been measured systematically in a specific heating setup.
熔化极气体保护焊电弧电压的研究
DOI: 10.1088/1361-6463/aaf588
发表时间: 2019
期刊: Journal of Physics D: Applied Physics
影响因子: --
作者:
Kozakov;Uhrlandt;Reisgen;Willms;Sharma;Lozano
通讯作者: Lozano
DOI: --
发表时间: 2006
期刊:
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影响因子: 2.2
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系统计算元素周期表的等离子体传输系数。
DOI: --
发表时间: 1988
期刊: Physical review. A, General physics
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发表时间: 2004
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作者:
Y. Hirata;M. Onda;H. Nagaki;T. Ohji
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