| 脉冲光纤激光诱导氧化硬质合金的温度场分布 |
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| 引用本文： | 姚晨佼,李亮,何宁,赵国龙,吴贤.脉冲光纤激光诱导氧化硬质合金的温度场分布[J].中国机械工程,2017,28(3):334. |
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| 作者姓名： | 姚晨佼 李亮 何宁 赵国龙 吴贤 |
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| 作者单位： | 南京航空航天大学机电学院，南京，210016 |
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| 基金项目： | 国家自然科学基金资助项目(51575268) |
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| 摘 要： | 利用ABAQUS建立了三维瞬态传热模型，计算了激光诱导下的温度场分布情况，并研究了激光参数对温度场的影响。仿真结果表明，工件最高温度随着单脉冲能量的增大以及扫描速度和光斑直径的减小而增大，热影响区的最大深度和宽度随着单脉冲能量的增大以及扫描速度和光斑直径的减小而增大。研究结果为优选激光诱导氧化硬质合金材料时的激光参数提供了重要依据。
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| 关 键 词： | 激光诱导氧化 有限元分析 温度场 硬质合金 |
Temperature Distribution of Cemented Carbides Irradiated by Pulsed Fiber Laser |
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| YAO Chenjiao,LI Liang,HE Ning,ZHAO Guolong,WU Xian.Temperature Distribution of Cemented Carbides Irradiated by Pulsed Fiber Laser[J].China Mechanical Engineering,2017,28(3):334. |
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| Authors: | YAO Chenjiao LI Liang HE Ning ZHAO Guolong WU Xian |
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| Affiliation: | College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics, Nanjing, 210016 |
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| Abstract: | In order to improve the machinability of cemented carbides, a study of the temperature field distribution of cemented carbides induced oxidation by pulsed fiber laser was carried out. A transient, three-dimensional thermal model with moving heat sources was established in ABAQUS. The temperature field was simulated and the influences of laser parameters on temperature field distribution were studied. The simulation results show that the maximum temperature and the maximum depth and width increase with increase of the single pulse energy and decrease with increase of scanning velocity and spot diameter. The simulation results may provide theoretic evidences for choosing proper laser parameters. |
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| Keywords: | laser induced oxidation finite element analysis temperature field cemented carbide |
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