High speed X-ray observation of digital controlled submerged arc welding phenomena

High speed X-ray observation of digital controlled submerged arc welding phenomena
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数控埋弧焊现象的高速X射线观察

DOI:
10.1080/13621718.2021.1908746
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发表时间:
2021
影响因子:
3.3
通讯作者:
Manabu Tanaka
Manabu Tanaka
中科院分区:
材料科学2区
文献类型:
--
作者:
Y. Abe;T. Fujimoto;Mitsuyoshi Nakatani;Hisaya Komen;M. Shigeta;Manabu Tanaka

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在这项研究中,通过 X 射线观察揭示了埋弧焊 (SAW) 过程中的焊接现象。在实验中,测试试样放置在X射线源和高速相机之间。以垂直于焊接方向的角度观察电弧周围的区域,帧速率为 3000 f s–1。根据观察结果,对以前未知的熔滴过渡、熔池和熔剂(熔渣)进行了研究。液滴传递方式为喷雾传递。当极性比与电极负极(EN比)相当时,转移频率降低,但液滴直径增大,然后变为球状转移。熔渣凝固覆盖熔池表面。
In this study, welding phenomena during submerged arc welding (SAW) were revealed with X-ray observation. In the experiment, the test coupon was placed between the X-ray source and high-speed camera. The area surrounding the arc was observed from an angle perpendicular to the welding direction vnat a frame rate is 3000 f s–1. From the observation results, the droplet transfer, weld pool and molten flux (slag), which were previously unknown, were investigated. The droplet transfer mode is the spray transfer. With a high polarity ratio comparable to electrode negative (EN ratio), the transfer frequency decreases, but the droplet diameter increases, then changes to the globular transfer. The slag solidifies covering surface of the weld pool.
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DOI: --
发表时间: 2017
期刊:
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影响因子: --
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