| 金属材料的激光吸收率研究 |
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| 引用本文： | 陈君,张群莉,姚建华,傅纪斌.金属材料的激光吸收率研究[J].应用光学,2008,29(5):793-798. |
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| 作者姓名： | 陈君 张群莉 姚建华 傅纪斌 |
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| 作者单位： | 浙江工业大学,机械制造及自动化教育部重点实验室,浙江,杭州,310014;浙江工业大学,激光加工技术工程研究中心,浙江,杭州,310014 |
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| 摘 要： | 针对菲涅耳公式计算金属材料激光吸收率所得的结果与实际测得的吸收率值存在一定的误差这一问题，在详细分析了激光热处理中金属材料吸收率影响因素的基础上，通过数值模拟，改进了金属材料激光吸收率的计算模型，并利用此激光吸收率计算模型(以铝、铜、铂、铁4种金属材料为例)进行激光吸收率的计算和分析，进而计算了3Cr13不锈钢激光吸收率的理论值，该值与用集总参数法测得的3Cr13不锈钢材料激光吸收率结果相吻合，从而验证了该改进的金属材料激光吸收率计算公式的正确性。
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| 关 键 词： | 激光技术 金属激光吸收率 集总参数法 |
| 收稿时间： | 2007/10/31 |
Study on laser absorptivity of metal material |
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| CHEN Jun,ZHANG Qun-li,YAO Jian-hua,FU Ji-bin.Study on laser absorptivity of metal material[J].Journal of Applied Optics,2008,29(5):793-798. |
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| Authors: | CHEN Jun ZHANG Qun-li YAO Jian-hua FU Ji-bin |
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| Institution: | 1. The MOE Key Laboratory of Mechanic Manufacture and Automation, Zhejiang University of Technology, Hangzhou 310014, China; 2. Research Center of Laser Processing Technology and Engineering, Zhejiang University of Technology, Hangzhou 310014, China |
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| Abstract: | To reduce the error between the calculated value of metal absorptivity by Fresnl formula and the measured value, the factors affecting metal absorptivity in the laser heat treatment were analyzed, and the mathematical model of metal absorptivity was improved by simulation. The model was used to calculate the absorptivity of aluminium, copper, platinum, iron and 3Cr13 stainless steel. The calculation result agrees with the value measured with lumped parameter method, which proved the validity of the improved laser absorptivity formula. |
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| Keywords: | laser technique metal laser absorptivity lumped parameter method |
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