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首页> 外文期刊>Technical Gazette >Analysis of geometrical characteristics of pulsed ND:YAG laser drilled holes in superalloy Nimonic 263 sheets
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Analysis of geometrical characteristics of pulsed ND:YAG laser drilled holes in superalloy Nimonic 263 sheets

机译：脉冲ND：YAG 263合金ND激光钻孔的几何特征分析。

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Owing to their excellent mechanical and physical characteristics, superalloys are the most suitable material for use in hot sections of aircraft engines. Thousands of holes need to be drilled in constructive parts of machines, with laser technique emerging as the most effective. Laser drilling has been used to produce small diameter, accurately positioned holes, with little damage in regions around them, and in various materials. Effective laser employment of drilling of high quality holes for critical applications highly depends on correct selection and optimization of laser drilling parameters. In this work, the holes were drilled by a pulsed Nd3+:YAG laser, with maximum average power of 160 W, in superalloy Nimonic 263 sheets, thickness 0,7 mm and 1,2 mm. The holes were observed by optical and scanning electron microscope. Geometrical characteristics of laser drilled holes that depend on laser parameters were investigated and analysed. The aim of this investigation was to find optimal laser parameters which would produce as much as possible regular holes.
机译：由于其优异的机械和物理特性，超级合金是最适合用于飞机发动机高温区域的材料。需要在机器的结构部件中钻出数千个孔，其中激光技术是最有效的。激光钻孔已用于生产小直径，精确定位的孔，在孔周围的区域以及各种材料中几乎没有损坏。在关键应用中对高质量孔进行有效的激光钻孔，很大程度上取决于正确选择和优化激光钻孔参数。在这项工作中，使用Nd3 +：YAG脉冲激光在最大厚度为0.7 mm和1,2 mm的263合金Nimonic合金薄板上钻出孔，最大平均功率为160W。用光学和扫描电子显微镜观察孔。研究和分析了取决于激光参数的激光钻孔的几何特性。这项研究的目的是找到最佳的激光参数，该参数将产生尽可能多的规则孔。

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