A new sealing technology for ultra-thin glass to aluminum alloy by laser transmission welding method

Zhang, Min; Yufei, Chan; Chen, Changjun; Qiu, Zhaoling

doi:10.1007/s00170-021-07226-9

Cited by 17 publications

(2 citation statements)

References 34 publications

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“…When the laser pulse energy was increased from 0.6 to 0.75 mJ, the range of seam dimensions widened, with the width ranging from 50 to 72 µm and the height ranging from 46 to 59 µm. In contrast, achieving a similar increase in seam dimensions in the case of glass-to-aluminum transmission welding using a millisecond pulsed laser required a laser energy enhancement of approximately 200 mJ [19]. This disparity can be attributed to the higher intensity and shorter duration of action of the nanosecond laser compared to those of the millisecond pulsed laser.…”

Section: Weld Seam Morphology and Analysismentioning

confidence: 96%

“…A cost-effective alternative approach is to utilize longer pulse lasers, such as mini-or nanosecond lasers while still retaining the advantages of laser transmission welding. For instance, Min et al [19] investigated the bonding of glass and aluminum using a mini-second laser and examined the effects of laser power, scanning speed, and pulse repetition frequency on weld quality. They achieved a high shear strength of bonding, measuring 8.94 MPa.…”

Section: Introductionmentioning

confidence: 99%

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Characterizations of Laser Transmission Welding of Glass and Copper Using Nanosecond Pulsed Laser

Nguyen,

Lin,

Tung

et al. 2023

Preprint

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In this study, we conducted an investigation into the heterogeneous bonding process of glass and copper using a nanosecond pulsed laser for laser transmission welding. Our research focused on examining various processing parameters and the influence of focal plane positions on bonding quality. To evaluate weld strength, we employed both pull-tensile separation force (PTSF) and shear-tensile separation force (STSF) measurements. The analysis of fracture and separation results encompassed detailed examinations of weld morphology, microstructure, elemental composition, and phase configuration. The results revealed that increasing the laser welding energy initially enhanced the weld strength until it reached a saturation point. This saturation point was attributed to the formation of voids or cracks, leading to residual stress within the weld zone due to non-uniform hot spots in the molten area during processing. Among the different focal plane positions tested, positioning it below the glass/copper interface yielded the highest weld strength. The maximum achieved bond strength was above 10 MPa, demonstrating the feasibility of cost-effective pulsed laser welding for copper-to-glass applications. Furthermore, the welds exhibited superior resistance to STSF compared to PTSF. PTSF caused breaking at the weld seam-glass boundary, leaving the weld seam on the copper plate, whereas STSF resulted in separation along the weld-copper interface, leaving the weld seam on the glass sheet. In-depth analysis through SEM and EDS elucidated that Cu and SiO2 underwent intra-mixing and inter-particle diffusion in the molten pool during welding. HR-TEM and SAED observations unveiled the presence of polycrystalline copper nanoparticles, copper oxides, and an amorphous Cu-O-Si region at the weld interface. This amorphous region significantly contributed to the robust bonding between copper and glass.

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Section: Weld Seam Morphology and Analysismentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Characterizations of Laser Transmission Welding of Glass and Copper Using Nanosecond Pulsed Laser

Nguyen,

Lin,

Tung

et al. 2023

Preprint

View full text Add to dashboard Cite

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A novel analytic model for sealing performance of static metallic joint considering the yield hardening effect

Deng

Luo

Zhang

et al. 2023

Int J Adv Manuf Technol

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The static metallic joints' sealing performance is deeply impacted by the plastic deformation and the interfacial separation of the contact surfaces with self-affine roughness. The yield hardening effect, unavoidable at the contact interface, is of vital importance to the plastic deformation and the distribution of the interfacial separation. However, most of the previous research ignores the effect of the yield hardening, assuming that the contact surfaces are elastic-perfectly plastic. To address the problem, a novel analytic model for investigating the sealing performance under the effect of yield hardening has been developed in this paper. Utilizing the measured data of contact surfaces as input, the corresponding leakage rates are calculated. Besides, the contact stress distribution as well as the real contact area at the interface are also discussed. The sealing experiments are carried out accordingly, verifying that the proposed model owns the ability to predict the leakage rate under the effect of yield hardening.

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Enhanced joint through significant diffusion and molten pool regions in fused silica to aluminum alloy welding by femtosecond mJ-pulses

Zhang,

Zhu,

et al. 2023

Int J Adv Manuf Technol

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A new sealing technology for ultra-thin glass to aluminum alloy by laser transmission welding method

Cited by 17 publications

References 34 publications

Characterizations of Laser Transmission Welding of Glass and Copper Using Nanosecond Pulsed Laser

Characterizations of Laser Transmission Welding of Glass and Copper Using Nanosecond Pulsed Laser

A novel analytic model for sealing performance of static metallic joint considering the yield hardening effect

Enhanced joint through significant diffusion and molten pool regions in fused silica to aluminum alloy welding by femtosecond mJ-pulses

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