摘要: |
针对带间隙薄壁件电子束焊接焊缝成形差的问题,基于5A06铝合金试板匹配5B06焊丝的表面堆焊试验,通过控制单一变量法,研究了不同送丝参数对电子束填丝焊接焊缝成形的影响。得出获得良好焊缝成形的送丝参数窗口为:采用前置送丝方式,送丝角度控制在15°~25°,焊丝干伸长控制在8~12mm,丝束处于部分相交状态,丝束交汇高度为0mm,丝束水平间距为0~1mm,在焊接线能量为432J/cm时,送丝速度控制在900~2400mm/min。 |
关键词: 铝合金;电子束填丝焊接;送丝参数;焊缝成形 |
基金项目: |
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Optimization of Wire Feeding Parameters for Electron Beam Filling Welding of Aluminum Alloy |
Tang Yingying1, Wang Lei2, Zhang Yikun1, Xia Chun2, Xie Meirong1, Chen Yue1, Yang Yu1
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1. Capital Aerospace Machinery Co., Ltd., Beijing 100076;2. Nanchang Hangkong University, Nanchang 330063
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Abstract: |
To solve the problem of poor weld formation in electron beam welding of thin-walled parts with gaps, based on the surfacing welding test of 5A06 aluminum alloy plate matched with 5B06 welding wire, the influence of different wire feeding parameters on the weld formation of electron beam wire filling welding is carried out by controlling the single variable method. It is concluded that the optimal window of wire feeding parameters to obtain good weld forming is as follows: the front wire feeding mode is adopted, the wire feeding angle is controlled at 15°~25°, the dry elongation of the welding wire is controlled at 8~12mm, the welding wire and the electron beam are partially intersected, the intersection height and horizontal spacing between the welding wire and the electron beam are 0mm and 0~1mm respectively, and the wire feeding speed is controlled at 900~2400mm/min when the welding linear energy is 432J/cm. |
Key words: aluminum alloy;electron beam wire filling welding;wire feeding parameters;weld forming |