Laser processing of aluminum-titanium-tailored blanks
Laser processing of aluminum-titanium-tailored blanks
复制标题
DOI：
10.1016/j.optlaseng.2004.07.005
复制
发表时间：
2005-09-01
影响因子：
4.6
通讯作者：
Vollertsen, F
中科院分区：
文献类型：
--
作者：
Kreimeyer, M;Wagner, F;Vollertsen, F
在航空工业中，钛（高强度、高刚度和耐腐蚀性）和铝合金的混合结构与传统材料相比具有优势，例如在机身区域。由于航空工业对基于商用和合格材料的新材料组合的需求，异种材料热连接的研究已经开始。与传统的热连接工艺相比，使用激光技术连接铝-钛-拼焊板和结构具有一些优点。主要目标是控制金属间相的形成，这发生在铝到钛的热连接。通过局部限制的能量输入和高连接速度，这些相的厚度可以减小到2 μ m以下。这导致良好的拉伸强度，因此在有前途的成形行为的拼焊板。本文介绍了铝-钛对接结构的激光连接的研究，包括有限元模拟，工艺开发，焊缝形貌的光学和电子显微镜和力学性能的表征。(c)2004年由Elsevier Ltd.出版。
In the aircraft industry, hybrid structures of titanium (high strength, stiffness and corrosion resistance) and aluminum alloys could offer an advantage in comparison to conventional materials, e.g. in fuselage areas. Due to demand from the aircraft industry for new material combinations based on commercially available and qualified materials, research into the thermal joining of dissimilar materials has been initiated.The use of the laser technique for joining aluminum-titanium-tailored blanks and structures offers some advantages compared with conventional thermal joining processes. The main goal is the control of intermetallic phase formation, which occurs during thermal joining of aluminum to titanium. Through locally restricted energy input and high joining speed, the thickness of these phases can be reduced to below 2 mu m.This results in good tensile strength and therefore in promising forming behavior of the tailored blanks. This paper presents a study for laser joining of aluminum-titanium in the butt joint configuration, including FEM simulation, process development, characterization of the seam morphology by optical and electron microscopy and mechanical properties. (c) 2004 Published by Elsevier Ltd.