| 毫秒激光金属打孔的解析和实验 |
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| 引用本文： | 秦渊,毕娟,倪晓武,沈中华,张喜和. 毫秒激光金属打孔的解析和实验[J]. 光学精密工程, 2011, 19(2): 340-347. DOI: 10.3788/OPE.20111902.0340 |
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| 作者姓名： | 秦渊 毕娟 倪晓武 沈中华 张喜和 |
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| 作者单位： | 1. 南京理工大学理学院信息物理与工程系,江苏,南京,210094
2. 长春理工大学理学院,吉林,长春,130022 |
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| 基金项目： | 国家自然科学基金资助项目(No.60778006); 国防基础科研基金资助项目(No.A3620060122) |
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| 摘 要： | 研究了用毫秒脉宽的长脉冲激光单个脉冲打深孔的成形过程和打孔速率.首先,由切割法得到了1 ms脉宽的Nd:YAG高斯激光对厚铝板打孔时孔的形貌,激光能量为7.9和28.9 J时,对应的孔深分别为1.849和2.975 mm.根据实验建立了轴对称模型,通过热传导方程得到了固相温度的解析解.然后,假设物质一旦熔融就离开孔,由...
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| 关 键 词： | 激光打孔 毫秒激光 打孔速率 离焦效应 |
Analysis and experiment on millisecond pulsed laser drilling of metals |
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| QIN Yuan,BI Juan,NI Xiao-wu,SHEN Zhong-hua,ZHANG Xi-he. Analysis and experiment on millisecond pulsed laser drilling of metals[J]. Optics and Precision Engineering, 2011, 19(2): 340-347. DOI: 10.3788/OPE.20111902.0340 |
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| Authors: | QIN Yuan BI Juan NI Xiao-wu SHEN Zhong-hua ZHANG Xi-he |
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| Affiliation: | QIN Yuan1,BI Juan2,NI Xiao-wu1,SHEN Zhong-hua1,ZHANG Xi-he2(1.Department of Information Physics & Engineering,School of Science,Nanjing University of Science & Technology,Nanjing 210094,China,2.School of Science,Changchun University of Science & Technology,Changchun 130022,China) |
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| Abstract: | With the purpose of investigating the millimeter order hole's formation and the drilling speed drilled by a single millisecond pulse laser,the shapes of holes in an aluminium slab drilled by a Nd: YAG Gaussian laser with 1 ms pulse width were obtained with the cutting method in an experiment.The hole depth is 1.849 mm and 2.975 mm when the laser energy is 7.9 J and 28.9 J,respectively.A semi-infinite axisymmetric model was established according to the experiment and the analytical solution of temperature in... |
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| Keywords: | laser drilling millisecond pulsed laser drilling speed defocusing effect |
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