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激光打孔过程三维瞬态数值模拟
Alternative TitleThree-dimensional transient numerical simulation of laser drilling process
葛志福; 虞钢; 何秀丽; 卢国权; 李少霞
Source Publication中国科学. 物理学, 力学, 天文学
2012
Volume42Issue:8Pages:869-876
ISSN1674-7275
Abstract建立了激光打孔过程的固/液/气三相三维数值计算模型,采用水平集(level-set)方法处理能量输入边界并追踪气液(L/V)界面发展,从而对激光打孔过程中的孔壁变化进行描述.模型综合考虑了材料气化、熔融液体溅射两种效应,涉及熔化潜热、气化潜热吸收及辐射散热损失等因素.基于有限体积法,编制计算程序,对激光打孔过程中的温度场、孔型演化过程进行了数值模拟,探讨了不同激光参数对打孔过程的影响.该模型对认识和研究激光打孔行为具有参考价值,也可以扩展至其他高能束流在材料表面的打孔描述.
Other AbstractA solid/liquid/gas three-phase numerical model is constructed to describe the progress of laser drilling by considering two main effects such as material evaporation and molten liquid ejection.The level set method is used to capture the liquid/vapor(L/V) interface and impose physical boundary conditions,making the model feasible to describe the evolution of the interface.By taking factors such as latent heat of vaporization and melt as well as energy lost due to the heat radiation etc.into account,a three-dimensional computer program based on finite volume method is developed for laser drilling, temperature field and the hole surface morphology evolution is simulated and the impact of different laser parameters on drilling are investigated.
Keyword激光打孔 数值模拟 气/液界面 水平集
Subject Area制造工艺力学
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Indexed ByCSCD
Language中文
Funding Organization国家自然科学基金资助项目(批准号:10832011)
CSCD IDCSCD:4598145
DepartmentMAM激光智能制造工艺力学
Classification二类
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/46421
Collection先进制造工艺力学重点实验室
Corresponding Author虞钢
Recommended Citation
GB/T 7714
葛志福,虞钢,何秀丽,等. 激光打孔过程三维瞬态数值模拟[J]. 中国科学. 物理学, 力学, 天文学,2012,42(8):869-876.
APA 葛志福,虞钢,何秀丽,卢国权,&李少霞.(2012).激光打孔过程三维瞬态数值模拟.中国科学. 物理学, 力学, 天文学,42(8),869-876.
MLA 葛志福,et al."激光打孔过程三维瞬态数值模拟".中国科学. 物理学, 力学, 天文学 42.8(2012):869-876.
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