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首页> 外文会议>International Congress on Applications of Lasers and Electro-Optics >PRECISE LASER CUTTING OF NARROWINGS IN MINIATURE FUSE LINKS BY USE OF FIBER LASER AND YAG (355 NM) LASER
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PRECISE LASER CUTTING OF NARROWINGS IN MINIATURE FUSE LINKS BY USE OF FIBER LASER AND YAG (355 NM) LASER

机译：通过使用光纤激光和YAG（355nm）激光器精确激光切割微型熔丝链路中的狭窄

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Laser cutting is widely used in many manufacturing processes with high requirements for accuracy, reliability and reproducibility. In the paper there are discussed some results of our research into precise laser cutting of different shapes in thin metallic foil strips that could play a role of a new type of miniature fuse links. In the study the Cu/Ag foil strips of width of 600μm and thickness of 50μm (outer layer of Ag about 3μm) were used. The holes were cut by use of two different lasers: Nd:YAG laser (355 nm), duration of pulses 25 ns (AVIA 355-10 Coherent) and fiber laser (1070 nm) (SPI redENERGY 20W) duration of pulses 9 - 200 ns. The influence of beam power, pulse repetition frequency and scanning velocity on quality and efficiency of micro-machining were investigated. The main advantage of applying Nd:YAG laser (355 nm) was better quality of cutting edges of holes. The experiments have shown that results of micro-cutting by use of pulsed (ns) fiber laser beam, despite of lower absorption by Cu/Ag foil are also to be accepted. The results of investigation confirmed expected electrical and thermal properties of elements created by laser technology.
机译：激光切割广泛用于许多制造工艺，具有高要求的精度，可靠性和再现性。本文讨论了我们对精确激光切割在薄金属箔条中的精确激光切割的一些结果，这可以发挥新型微型熔丝链路的作用。在研究中，使用宽度为600μm和厚度为50μm（Ag的外层为约3μm）的Cu / Ag箔条。通过使用两种不同的激光切割孔：Nd：YAG激光器（355nm），脉冲持续时间25ns（Avia 355-10相干）和光纤激光器（1070nm）（Spi Redenergy 20W）脉冲9-200的持续时间ns。研究了光束功率，脉冲重复频率和扫描速度对微加工质量和效率的影响。应用Nd的主要优点：YAG激光器（355nm）是孔的更好的切削刃质量。实验表明，尽管Cu / Ag箔的吸收较低，但是通过使用脉冲（ns）光纤激光束微切的结果也被接受。调查结果证实了激光技术产生的元素的预期电气和热性能。

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