Research on Wobbling Laser-Arc Hybrid Welding of 5083 Aluminum Alloy

QI Xiaoyong; ZHOU Jing; LIU Shuofu; YE Bing; WANG Aihua

doi:10.16080/j.issn1671–833x.2019.06.071

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Research on Wobbling Laser-Arc Hybrid Welding of 5083 Aluminum Alloy

更新时间：2025-10-30

- Research on Wobbling Laser-Arc Hybrid Welding of 5083 Aluminum Alloy
- Aeronautical Manufacturing Technology Vol. 62, Issue 6, Pages: 71-78(2019)
- 作者机构：
  
  1. 激光先进制造技术湖北省重点实验室,武汉,430223
  2. 武汉华工激光工程有限责任公司,武汉,430223
  3. 上汽大众汽车有限公司,上海,201800
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671–833x.2019.06.071
  CLC：
- Published：2019
- 稿件说明：
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祁小勇，周京，刘硕夫，叶兵，王爱华. 5083铝合金摆动激光电弧复合焊工艺研究[J]. 航空制造技术, 2019, 62(6): 71-78.

QI Xiaoyong, ZHOU Jing, LIU Shuofu, YE Bing, WANG Aihua. Research on Wobbling Laser-Arc Hybrid Welding of 5083 Aluminum Alloy. Aeronautical Manufacturing Technology, 2019, 62(6): 71-78.
祁小勇，周京，刘硕夫，叶兵，王爱华. 5083铝合金摆动激光电弧复合焊工艺研究[J]. 航空制造技术, 2019, 62(6): 71-78. DOI： 10.16080/j.issn1671–833x.2019.06.071.

QI Xiaoyong, ZHOU Jing, LIU Shuofu, YE Bing, WANG Aihua. Research on Wobbling Laser-Arc Hybrid Welding of 5083 Aluminum Alloy. Aeronautical Manufacturing Technology, 2019, 62(6): 71-78. DOI： 10.16080/j.issn1671–833x.2019.06.071.

摘要

为了减少铝合金激光焊接内部气孔，提升焊缝质量，采用摆动的光纤激光对6mm–5083 铝合金锁底对接接头进行摆动激光–MIG 复合焊接。研究了摆动激光束的频率、振幅对焊缝内部气孔数量和熔深的影响，并采用正交试验研究了激光功率、焊接速度、焊接电流、摆动频率对焊缝内部质量的影响，获取了最优参数，进而分析了最优参数下焊缝的微观组织及力学性能。试验结果表明，激光束摆动频率及振幅的提升均有助于消除气孔缺欠，各因素对气孔率的影响大小依次为光束摆动频率、焊接电流、焊接速度、激光功率，当采用功率6400W、焊接电流136A、焊接速度28mm/s、摆动频率240Hz、摆动振幅1.5mm 的参数焊接6mm–5083 铝合金时，焊缝内部无明显气孔，接头平均硬度为70.4HV，焊缝强度278MPa，达到母材91.9%。

Abstract

In order to reduce the internal porosity and improve the quality of aluminum alloy weld seam

the wobbling fiber laser is performed on the 8mm 5083 aluminum alloy locked bottom butt joint in laser-MIG hybrid welding. The influence of the weaving frequency and amplitude of the laser beam on the porosity and the penetration was studied. Orthogonal experiments were carried out to investigate the primary and secondary relations between the influence of laser power

welding speed

welding current and weaving frequency on the formation of weld porosity. The optimal parameters were obtained and the microstructure and mechanical properties of the weld joint under the optimal parameters were analyzed. The result shows that the laser beam swing frequency and amplitude are helpful to eliminate stomatal imperfections. The effect of the factors on the porosity is following by the laser weaving frequency

welding current

welding speed

laser power. To weld 6mm 5083 aluminum alloy by using the parameters

power 6800W

welding current 136A

welding speed 28mm/s

weaving frequency 240Hz

wobble amplitude 1.5mm

we can get joint with no obvious pores

which average hardness is 70.4HV

and the tensile strength of welded joints can reach 278MPa

reaching 91.9% of the base metal.

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