Research Progress on Double Laser-Beam Bilateral Synchronous Welding of T-Joints for Light Alloy

ZHAN Xiaohong; ZHAO Yanqiu; CHEN Shuai; KANG Yue

doi:10.16080/j.issn1671-833x.2020.11.020

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Research Progress on Double Laser-Beam Bilateral Synchronous Welding of T-Joints for Light Alloy

更新时间：2025-10-30

- Research Progress on Double Laser-Beam Bilateral Synchronous Welding of T-Joints for Light Alloy
- Aeronautical Manufacturing Technology Vol. 63, Issue 11, Pages: 20-31(2020)
- 作者机构：
  
  1. 南京航空航天大学直升机传动技术重点实验室,南京,211106
  2. 南京航空航天大学材料科学与技术学院,南京,211106
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2020.11.020
  CLC：
- Published：2020
- 稿件说明：
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占小红，赵艳秋，陈帅，康悦 . 轻合金T型结构双激光束双侧同步焊接技术研究进展[J]. 航空制造技术, 2020, 63(11): 20-31.

ZHAN Xiaohong，ZHAO Yanqiu， CHEN Shuai，KANG Yue. Research Progress on Double Laser-Beam Bilateral Synchronous Welding of T-Joints for Light Alloy. Aeronautical Manufacturing Technology, 2020, 63(11): 20-31.
占小红，赵艳秋，陈帅，康悦 . 轻合金T型结构双激光束双侧同步焊接技术研究进展[J]. 航空制造技术, 2020, 63(11): 20-31. DOI： 10.16080/j.issn1671-833x.2020.11.020.

ZHAN Xiaohong，ZHAO Yanqiu， CHEN Shuai，KANG Yue. Research Progress on Double Laser-Beam Bilateral Synchronous Welding of T-Joints for Light Alloy. Aeronautical Manufacturing Technology, 2020, 63(11): 20-31. DOI： 10.16080/j.issn1671-833x.2020.11.020.

摘要

轻合金双激光束双侧同步焊接（Double Laser-Beam Bilateral Synchronous Welding，DLBSW）技术是一项极具应用前景与发展潜力的先进技术，对实现航空航天壁板结构的轻量化与高效率制造具有重要意义。然而，由于轻合金本身的材料特性与 DLBSW 技术的特殊性，轻合金 T 型结构 DLBSW 技术仍然存在诸多细节问题有待深入探索。分析了轻合金 T 型结构 DLBSW 技术的焊接冶金特点与稳定性，重点研究了 DLBSW 接头中焊接缺陷的形成机理与抑制措施，考察了 T 型接头的力学性能与断裂机理。此外，探讨了轻合金 T 型结构 DLBSW 过程数值模拟研究的重要意义。

Abstract

Double laser-beam bilateral synchronous welding (DLBSW) of T-joints for light alloy is an advancing technology with promising applications and potential development. It is significant for the aerospace panel structures in the lightweight and efficient manufacturing. However

there are still many unresolved details in DLBSW technology of T-joint for light alloy owing to the material properties of light alloy and the particularity of DLBSW technology. In this paper

the welding metallurgy characteristics and stability of DLBSW process for light alloy T-joints are analyzed. The formation mechanism and suppression measures for welding defects in DLBSW T-joint are emphatically researched. The mechanical properties and fracture mechanism of the T-joint are investigated. Besides

the significance of the numerical simulation study on DLBSW of T-joints for light alloy is discussed.

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