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Al2O3陶瓷薄片CO2连续激光弯曲试验研究

发表时间:2009-03-31  浏览量:2096  下载量:873
全部作者: 吴东江,张强,郭东明
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
摘 要: 大连理工大学精密与特种加工教育部重点实验室通过改变激光功率、扫描速度等工艺参数,利用CO2连续激光对Al2O3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Al2O3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Al2O3陶瓷薄片进行弯曲,弯曲角度可达2°;Al2O3陶瓷的激光弯曲过程具有强烈的温度敏感性,在一定范围内,弯曲角度随着温度的变化而急剧变化;适合Al2O3陶瓷激光弯曲的最佳线能量密度范围为17~24 J/mm.
关 键 词: 机械制造自动化;特种加工;激光弯曲;Al2O3陶瓷;温度敏感性;塑性变形
Title: Experiment on bending of Al2O3 ceramic slice with CO2 CW-laser
Author: WU Dongjiang, ZHANG Qiang, GUO Dongming
Organization: Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology
Abstract: This paper carries out experiments on bending of Al2O3 ceramic slice with CO2 CW-laser at various laser processing parameters, including laser power, scanning velocity and so on. Laser linear energy density is introduced to discuss the best processing parameters, and bending characteristics are briefly analyzed according to the high temperature properties of Al2O3 ceramic. Experimental results show that the Al2O3 ceramic slice can be bent by CO2 CW-laser, and the bending angle can reach up to 2°. Laser bending processing of Al2O3 ceramic slice is strongly sensitive to temperature, and there exists a critical temperature, above which, the bending angle increases greatly. The best range of laser linear energy density for bending Al2O3 ceramic is 17~24 J/mm.
Key words: mechanical manufacture and automation; non-traditional machining; laser bending; Al2O3 ceramic; temperature sensitivity; plastic deformation
发表期数: 2009年3月第6期
引用格式: 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]. 中国科技论文在线精品论文,2009,2(6):596-601.
 
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