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铝/钢电弧辅助激光对接熔钎焊铺展特性

樊丁, 王斌, 李春玲, 黄健康, 余淑荣

樊丁, 王斌, 李春玲, 黄健康, 余淑荣. 铝/钢电弧辅助激光对接熔钎焊铺展特性[J]. 焊接学报, 2016, 37(1): 1-5.
引用本文: 樊丁, 王斌, 李春玲, 黄健康, 余淑荣. 铝/钢电弧辅助激光对接熔钎焊铺展特性[J]. 焊接学报, 2016, 37(1): 1-5.
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FAN Ding, WANG Bin, LI Chunling, HUANG Jiankang, YU Shurong. Spreading characteristics of arc-assisted laser welding filler metals for welding-brazing butt joint between aluminum alloy and galvanized steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(1): 1-5.
Citation: FAN Ding, WANG Bin, LI Chunling, HUANG Jiankang, YU Shurong. Spreading characteristics of arc-assisted laser welding filler metals for welding-brazing butt joint between aluminum alloy and galvanized steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(1): 1-5.
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铝/钢电弧辅助激光对接熔钎焊铺展特性

  • 1.

    兰州理工大学 省部共建有色金属先进加工与再利用国家重点实验室, 兰州 730050;兰州理工大学 材料科学与工程学院, 兰州 730050

  • 2.

    兰州理工大学 省部共建有色金属先进加工与再利用国家重点实验室, 兰州 730050

基金项目: 国家自然科学基金资助项目(51465031);甘肃省自然科学基金资助项目(1308RJZA158)

Spreading characteristics of arc-assisted laser welding filler metals for welding-brazing butt joint between aluminum alloy and galvanized steel

  • 1.

    State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China;School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China

  • 2.

    State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China

摘要

    摘要
  • 摘要: 采用小功率TIG电弧辅助激光热源进行5A06铝合金和热镀锌ST04Z钢的预置粉末对接熔钎焊工艺试验,通过SEM,Photoshop来研究预留间隙、背面填涂钎剂、激光热输入、辅助电弧电流、热源中心间距、填加焊丝对熔钎焊接头铺展宽度的影响. 结果表明,预留小于0.5 mm的间隙与背面填涂钎剂均可增大铺展宽度;在未焊穿的前提下,随激光热输入和辅助电弧电流的增加,铺展宽度增大;随热源中心间距的增大,铺展宽度先增加后减小. 焊接熔池中填加Al-Si焊丝较未填加焊丝的铺展性更好,获得连续、美观的焊缝表面形貌.
    Abstract: Butt welding-brazing joint between 5A06 aluminum alloy and ST04Z steel sheets was obtained by low power arc-assisted laser welding with preplaced filler powder. The influence of pre-welding gap, filling brazing flux, laser heat input, assistant arc current, heat source center distance and adding welding wire on spreading characteristics of the filler metal was studied by using SEM, Photoshop. The results show that the pre-welding gap less than 0.5 mm and the filling brazing flux on the welds' back were favorable. When the workpiece was not burn through, the weld spreading width was increased with the increase of the laser heat input and assistant arc current. With the increase of the distance to the heat source center, the weld spreading width first increaseed then decreased. Adding wire welding in the molten pool offers better spreadability, continuous and sound weld appearance can be obtained than the condition without wire addition.
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    • 参考文献(9)
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出版历程
  • 收稿日期:  2014-12-16

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