期刊
APPLIED SURFACE SCIENCE
卷 252, 期 13, 页码 4792-4797出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2005.06.050
关键词
laser; titanium; cleaning; joining
The paper compares laser cleaning trials performed using a Q-switched Nd:YAG laser, lambda = 1.064 mu m and a continuous wave (CW) CO2 laser, lambda = 10.6 mu m, applied to aerospace-grade, contaminated titanium alloys. The mechanisms for cleaning using each laser system are modelled to determine the mode and extent of contaminant removal. The model results are then compared with the surface chemistry and micro-structural results from the cleaning trials performed. The results show the dominant cleaning process for Nd:YAG cleaning to be by evaporation of the contaminant via conduction through surface heating, while for CO2 laser cleaning the small fraction of the beam coupling directly with the contaminant is sufficient for direct heating and selective evaporation. The results for experimental cleaning, electron beam (EB) welding and diffusion bonding align well with the model, particularly when secondary reactions are taken into account. (c) 2005 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据