钠钙玻璃皮秒激光焊接工艺研究

IF 4.6 2区 物理与天体物理 Q1 OPTICS
Yichen Huang , Zihao Zhang , Xu Wang , Liqun Li , Lijun Yang , Mingyu Li , Wenbo Zhu
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引用次数: 0

摘要

玻璃的各种优异性能使其广泛应用于航空航天、太阳能电池等领域,其加工方法也备受关注。超快激光具有峰值能量密度高、热冲击小等特点,在玻璃等透明材料的焊接方面具有独特的优势。现阶段,超快激光焊接大多是针对有光学接触的玻璃进行的,苛刻的光学接触条件阻碍了玻璃焊接技术的进一步应用。本文尝试使用高重复频率红外皮秒激光焊接非光学接触的钠钙玻璃。系统研究了激光功率、扫描时间、扫描间距、扫描方向和聚焦位置对焊缝形态和断裂强度的影响。结果表明,扫描时间和扫描间距一方面会影响玻璃熔体的体积,另一方面会影响焊接过程中的应力大小,而这两者对整体焊接强度的影响更大。在最佳工艺参数下,可在离焦量的± 200 μm 范围内实现有效连接,形成的焊缝尺寸为 10 mm × 5 mm。当受力方向与扫描方向垂直时,可获得 24.85 兆帕的强度。最终揭示了玻璃焊接的机理,为玻璃超快激光焊接的实际应用提供了技术指导。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Process study of picosecond laser welding of soda-lime glass
The various excellent properties of glass make it widely used in aerospace, solar cells and other fields, and its processing methods have also attracted much attention. Ultra-fast laser has the characteristics of high peak energy density and low heat impact, which has unique advantages in welding of transparent materials such as glass. At this stage, most of the ultra-fast laser welding is carried out for the glass with optical contact, and the harsh optical contact conditions hinder the further application of glass welding technology. In this paper, an attempt is made to weld non-optical contacted soda-lime glass using high repetition frequency infrared picosecond laser. The effects of laser power, scanning times, scanning spacing, scanning direction and focus position on weld morphology and breaking strength were systematically investigated. The results show that the scanning times and scanning spacing affect the volume of glass melt on one hand, and the stress magnitude during the welding process on the other hand, which have a greater impact on the overall weld strength. Under the optimal process parameters, an effective connection can be achieved within ± 200 μm of the defocusing amount, and the weld formed has a size of 10 mm × 5 mm. A strength of 24.85 MPa is obtained when the force direction is perpendicular to the scanning direction. The mechanism of glass welding was finally revealed, providing technical guidance for the practical application of ultrafast laser welding of glass.
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来源期刊
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
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