郑盼盼
,
陈冷
,
何飞
,
杨荃
材料科学与工程学报
综述了金属板材织构在线检测技术的研究进展,介绍了基于X射线衍射技术织构在线检测的原理和方法.着重讨论了基于面探测器织构在线检测技术的基础和应用研究,分析了织构在线检测技术存在的问题.最后,展望了织构在线检测技术的未来.
关键词:
金属板材
,
X射线衍射
,
织构在线检测
Y.J. Shi
金属学报(英文版)
Laser forming is a new flexible and dieless forming technique. To achieve the high accuracy forming, the temperature gradient mechanism (TGM) is studied. In the analysis of TGM, the plate bends about x-axis and about y-axis as well. To understand the deformation trend, the numerical simulation of deformation of plate is conducted by choosing different laser powers, laser spot diameters, scanning speeds, lengths, widths and thicknesses. From the results of simulation, it can be seen that the laser spot diameter, the scanning speed, laser power and thickness of plate play dominant roles in the laser forming process. However, the bending angles αx and αy show different trends with the variation of parameters. In addition, in comparison with above four parameters, the effect of length and width of plate on the bending angle may be neglected, but their effects are significant for the bending radius R.
关键词:
aser forming
,
温度梯度机理
,
金属板材
