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首页> 外文会议>Materials science amp; technology 2011 conference amp; exhibition >Effects of Welding Positions on Droplet Transfer in CO2 Laser-MAG Hybrid Welding
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Effects of Welding Positions on Droplet Transfer in CO2 Laser-MAG Hybrid Welding

机译：焊接位置对CO2激光-MAG混合焊接中液滴转移的影响

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摘要

All-position welding is widely used in many industries such as pipeline construction,rnautomobile factory, and shipyard. In this paper, the variations of the droplet transfer at differentrnwelding positions, including flat, horizontal, and vertical positions, have been studied by highrnspeed video photography during CO_2 laser- MAG hybrid welding of E36 steel plates. The resultsrnindicated that the droplet transfer noted by transfer mode, impact l℃ation, droplet diameter, andrntransfer frequency were significantly effected by the welding positions. With the same weldingrnparameters, at flat and horizontal positions the transfer modes were globular metal transfer, whilernat vertical position the transfer mode was short-circuiting. At flat and vertical positions therndroplet impacted on the weld pool, whereas at the horizontal position the impact l℃ation of therndroplet could be divided into three types, including drop down, impact under the seam, andrnimpact on the weld pool. At vertical position the mean droplet diameter and the transferrnfrequency were the largest one and the lowest one at the three positions, respectively. The resultsrnalso showed that the weld appearance was significantly affected by the welding positions.
机译：全位置焊接广泛用于许多行业，例如管道建设，汽车制造厂和造船厂。在本文中，通过在E36钢板的CO_2激光-MAG混合焊接过程中通过高速视频摄影研究了在不同焊接位置（包括平面，水平和垂直位置）上的熔滴传输变化。结果表明，熔接位置对熔接方式，熔接温度，熔接直径，熔接频率有显着影响。在相同的焊接参数下，在平坦和水平位置，传递模式为球形金属传递，而在垂直位置，传递模式为短路。在水平和垂直位置，熔滴冲击焊缝池，而在水平位置，熔滴的冲击温升可分为三种类型，包括跌落，焊缝下冲击和对熔池的冲击。在垂直位置，平均液滴直径和传递频率在三个位置分别是最大的和最小的。结果还表明，焊接外观受焊接位置的影响很大。

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  • 来源
  • 会议地点 Columbus OH(US)
  • 作者

    J.C. Feng; L.Q. Li; C.J. Hang; Y.B. Chen; H. Qin;

  • 作者单位

    State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology,Harbin, 150001, China;

    State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology,Harbin, 150001, China;

    State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology,Harbin, 150001, China;

    State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology,Harbin, 150001, China;

    State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology,Harbin, 150001, China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Laser-MAG hybrid welding; Droplet transfer; Welding positions; Weld appearance;

    机译：激光-MAG混合焊接;;液滴转移;;焊接位置;;焊接外观;

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