| Al2O3陶瓷薄片CO2连续激光弯曲试验研究 |
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| 引用本文： | 吴东江,张强,郭东明.Al2O3陶瓷薄片CO2连续激光弯曲试验研究[J].光学精密工程,2009,17(10):2473-2479. |
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| 作者姓名： | 吴东江 张强 郭东明 |
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| 作者单位： | 大连理工大学,精密与特种加工教育部重点实验室,辽宁,大连,116024 |
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| 基金项目： | 国家教育部博士学科点专项科研基金资助项目，辽宁省自然科学基金资助项目 |
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| 摘 要： | 脆性材料的激光弯曲成形技术是激光快速成形技术的重要应用，有着广阔的应用前景。本文通过改变激光功率、扫描速度等工艺参数，利用CO2连续激光对氧化铝陶瓷薄片进行弯曲试验，同时引入线能量密度来寻求适合弯曲的最佳工艺参数，并结合氧化铝陶瓷的高温性能分析了其激光弯曲特点。试验结果表明：采用CO2连续激光可以对氧化铝陶瓷薄片进行弯曲，弯曲角度可达2°；氧化铝陶瓷的激光弯曲过程具有强烈的温度敏感性，当试样表面温度大于临界温度时，弯曲角度迅速增加；适合弯曲的最佳线能量密度范围为17～24 J/mm 。
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| 关 键 词： | 激光弯曲 氧化铝陶瓷 温度敏感性 塑性变形 |
| 收稿时间： | 2008-12-03 |
| 修稿时间： | 2008-12-27 |
Experiment on bending of Al_2O_3 ceramic slice with CO_2 CW-laser |
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| WU Dong-jiang,ZHANG Qiang,GUO Dong-ming.Experiment on bending of Al_2O_3 ceramic slice with CO_2 CW-laser[J].Optics and Precision Engineering,2009,17(10):2473-2479. |
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| Authors: | WU Dong-jiang ZHANG Qiang GUO Dong-ming |
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| Affiliation: | WU Dong-jiang,ZHANG Qiang,GUO Dong-ming(Key Laboratory for Precision and Non-traditional Machining Technology of theMinistry of Education,Dalian University of Technology,Dalian 116024,China) |
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| Abstract: | As an important application of laser rapid forming,the laser bending technology of brittle materials has broad prospects.In this paper,the experiments on bending of Al2O3 ceramic slices with a CO2 CW-laser are carried out at various laser processing parameters,including laser powers and scanning velocities.Laser linear energy density is introduced to explore the best processing parameters for laser bending,and bending characteristics are briefly analyzed according to the high temperature properties of Al2O3... |
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| Keywords: | laser bending Al2O3 ceramic temperature sensitivity plastic deformation |
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