| 扫描环形光斑激光束优化研究 |
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| 引用本文： | 王娟娟,王云山,朱福栋.扫描环形光斑激光束优化研究[J].光学技术,2009,35(6). |
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| 作者姓名： | 王娟娟 王云山 朱福栋 |
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| 作者单位： | 天津工业大学,激光技术研究所,天津,300160 |
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| 基金项目： | 天津市自然科学基金资助项目(08JCYBJC09200) |
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| 摘 要： | 激光束的形状和能量分布限定了激光的应用范围,为满足不同的激光加工需要,必须对激光束进行变换。针对实验室用CO2激光器在热处理方面的应用,提出了激光扫描环形光斑光束优化法。基于温度场叠加原理建立了扫描环形光斑温度场的数学模型,模拟其温度场,可得到其温度分布特性;通过实验研究,分析了聚焦光斑与扫描环形光斑在激光淬火中对材料的热作用效果。结果表明,扫描环形光斑能改善激光热处理硬化层分布。理论和实验研究表明,激光扫描环形光斑技术可以实现激光热处理光束的优化,有一定的应用前景。
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| 关 键 词： | 激光技术 激光热处理 扫描环形光斑 光束优化 数学模型 温度场模拟 |
Research on scanning ring facula laser beam optimum |
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| WANG Juan-juan,WANG Yun-shan,ZHU Fu-dong.Research on scanning ring facula laser beam optimum[J].Optical Technique,2009,35(6). |
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| Authors: | WANG Juan-juan WANG Yun-shan ZHU Fu-dong |
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| Institution: | Laser processing center;Tianjin Polytechnic University;Tianjin 300160;China |
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| Abstract: | The shape and quality of laser beam define its applications in laser processing.For different requests of laser processing,the input laser beam always needs to be transformed.Beam optimum method of laser scanning ring facula is put forward for the application of CO2 LASER on heat treatment in the laboratory.The mathematic model of laser scanning ring facula is built basing on the superposing principle of temperature field.And its temperature distribution characteristic is obtained by simulating its temperat... |
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| Keywords: | laser technique laser heat treatment scanning ring facula mathematic modle beam optimum temperature field simulation |
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