Direct welding of glass and aluminum alloy using nanosecond fiber laser with beam oscillation

IF 5 2区物理与天体物理 Q1 OPTICS

Optics and Laser Technology Pub Date : 2025-10-01 DOI:10.1016/j.optlastec.2025.114011

Jinming Ma , Meng Jiang , Xi Chen , Ao Chen , Xuan Su , Yanbin Chen , Peng He

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Abstract

In this work, glass and aluminum alloy were directly welded using a novel process of nanosecond fiber laser with beam oscillation. The feasibility of achieving reliable joining of glass and aluminum alloy without surface polishing or external pressure was explored via changing the beam oscillation strategy. The results showed that a defect-free glass/aluminum alloy joint could be fabricated with a 40 μm lap gap using optimized parameters: a laser power of 25 W, a scanning speed of 50 mm/s, an oscillation frequency of 750 Hz, and an oscillation amplitude of 150 μm. The welded joints exhibited a maximum shear strength of 10.95 MPa, which is 6 times higher than that without beam oscillation. Fractographic analysis results showed that beam oscillation homogenized laser energy distribution, which could result in an uniform melting and intermixing of glass and aluminum alloy. The enhanced strength of the weld joint was attributed to the improved mechanical interlocking and reduced cracks in the glass modification zone. This work presents a reliable approach for the direct joining of glass and aluminum alloy without the need for surface polishing or external pressure, ensuring high welding efficiency.

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利用纳秒光纤激光器进行光束振荡玻璃与铝合金的直接焊接

本研究采用一种新颖的纳秒光纤激光振荡工艺，将玻璃与铝合金直接焊接。探讨了通过改变光束振荡策略，在不进行表面抛光和外压的情况下实现玻璃与铝合金可靠连接的可行性。结果表明：在激光功率为25 W、扫描速度为50 mm/s、振荡频率为750 Hz、振荡幅值为150 μm的优化条件下，可以制备出搭接间隙为40 μm的无缺陷玻璃/铝合金接头。焊接接头的最大抗剪强度为10.95 MPa，是无梁振动时的6倍。断口分析结果表明，光束振荡使激光能量分布均匀化，使玻璃与铝合金的熔合均匀。焊接接头强度的提高是由于改善了机械联锁和减少了玻璃改性区的裂纹。这项工作为玻璃和铝合金的直接连接提供了一种可靠的方法，无需表面抛光或外部压力，确保了高焊接效率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optics and Laser Technology 物理-光学

CiteScore

8.50

自引率

10.00%

发文量

1060

审稿时长

3.4 months

期刊介绍： Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication. The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas: •development in all types of lasers •developments in optoelectronic devices and photonics •developments in new photonics and optical concepts •developments in conventional optics, optical instruments and components •techniques of optical metrology, including interferometry and optical fibre sensors •LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow •applications of lasers to materials processing, optical NDT display (including holography) and optical communication •research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume) •developments in optical computing and optical information processing •developments in new optical materials •developments in new optical characterization methods and techniques •developments in quantum optics •developments in light assisted micro and nanofabrication methods and techniques •developments in nanophotonics and biophotonics •developments in imaging processing and systems