摘要
基于水导激光加工技术,提出一种新型水-气缩流导光加工技术,并针对水-气缩流与全反射导光特性进行了仿真分析。结果显示:利用流体仿真得到0.5 mm缩径至0.1 mm的水柱缩流参数进行光学仿真,激光光斑在轴向偏移8.5 mm、径向偏移0.3 mm和角度偏移20°条件下,均能使耦合效率超过95%。通过试验分析验证了水-气缩流传导激光加工技术的工艺可行性,为水导激光低损伤、高精度、大厚度材料加工奠定理论基础。
Based on the water-guided laser processing technology,a new water-gas shrinkage light-guided processing technology is proposed,and the water-air shrinkage and total reflection light-guided characteristics are simulated and analyzed.The analysis results show that the waterjet diameter used for optical simulation can be ruduced from 0.5 mm to 0.1 mm through fluid simulation.The laser spot can meet the coupling efficiency above 95%under the conditions of axial offset 8.5 mm,radial offset 0.3 mm and angular offset 20°.In addition,through experiments,the article verified the feasibility of the water-gas shrinkage conduction laser processing technology,which lays a theoretical foundation on the water-guided laser processing of low-damage,high-precision and large-thickness materials.
作者
张广义
潮阳
张正
郭春海
张文武
ZHANG Guangyi;CHAO Yang;ZHANG Zheng;GUO Chunhai;ZHANG Wenwu(Institute of Advanced Manufacturing Technology,Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo 315201,China)
出处
《电加工与模具》
2020年第1期47-51,共5页
Electromachining & Mould
基金
国家自然科学基金资助项目(51805525)
中国博士后科学基金面上项目(2017M621984)
国家商用飞机制造工程技术研究中心创新基金(COMAC-SFGS-201736742)
关键词
水导激光
水-气缩流
仿真分析
试验验证
water-guided laser
water-gas shrinkage
simulation analysis
experimental verification
