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7075铝合金纳秒激光微孔加工研究
Authors
安超
张文武
+3 more
昝少平
李德鑫
陶俊
Publication date
1 January 2017
Publisher
Abstract
利用纳秒激光器对7075铝合金进行激光冲击钻孔实验研究,采用控制变量法,分别研究了不同激光脉冲数、激光峰值功率以及不同离焦量条件下对进出孔直径以及孔锥度的影响规律。结果表明,在一定参数范围内,不同激光脉冲数对进出孔直径具有一定影响,激光峰值功率在一定程度上增加会减小孔的锥度,但当峰值功率增加至45.22kW时,大量的熔融物和飞溅物对孔的形貌影响很大;当激光焦点位于工件表面时,可获得最小入口直径86μm,最小锥度为0.38°。研究结果为铝合金激光微孔加工工艺优化和参数选取提供参考
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Last time updated on 22/01/2018