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Thin water film assisted glass ablation with a picosecond laser

机译:皮秒激光水薄膜辅助玻璃烧蚀

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Ultrashort lasers have become a promising tool for fast and high quality cutting of glasses. However, growing industry constantly seek for higher production throughput maintaining excellent process quality. In most cases, glass processing speed is limited to avoid clogging the laser-ablated channel, minimize crack generation, and heat accumulation effects in the glass material. Studies have shown that the introduced water layer onto the surface of the workpiece can significantly improve laser throughput and processing quality.This paper investigates laser ablation of soda-lime glass sheets in ambient air and water-assisted conditions. Glass cutting and single scan groove ablation were investigated in spite of ablation efficiency and scribe morphology. A 532 nm laser working at 100 kHz repetition rate was utilized in the experiments. Results showed that the applied thin flowing water film on the sample’s surface improved the glass ablation efficiency by 12 times.
机译:超短激光已经成为用于快速,高质量切割眼镜的有前途的工具。然而,成长中的工业不断寻求更高的生产量,以保持出色的工艺质量。在大多数情况下,玻璃加工速度受到限制,以避免堵塞激光烧蚀的通道,最大程度地减少裂纹的产生以及玻璃材料中的热量积聚效果。研究表明,在工件表面上引入水层可以显着提高激光的产量和加工质量。本文研究了在环境空气和水辅助条件下对钠钙玻璃板的激光烧蚀。尽管烧蚀效率和划痕形态,但仍对玻璃切割和单扫描凹槽烧蚀进行了研究。实验中使用了以100 kHz重复频率工作的532 nm激光。结果表明,在样品表面上施加薄的流动水膜可将玻璃烧蚀效率提高12倍。

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