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Investigation of Laser Welding of Ti Alloys for Cognitive Process Parameters Selection

机译：钛合金激光焊接认知工艺参数选择的研究

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Laser welding of titanium alloys is attracting increasing interest as an alternative to traditional joining techniques for industrial applications, with particular reference to the aerospace sector, where welded assemblies allow for the reduction of the buy-to-fly ratio, compared to other traditional mechanical joining techniques. In this research work, an investigation on laser welding of Ti–6Al–4V alloy plates is carried out through an experimental testing campaign, under different process conditions, in order to perform a characterization of the produced weld bead geometry, with the final aim of developing a cognitive methodology able to support decision-making about the selection of the suitable laser welding process parameters. The methodology is based on the employment of artificial neural networks able to identify correlations between the laser welding process parameters, with particular reference to the laser power, welding speed and defocusing distance, and the weld bead geometric features, on the basis of the collected experimental data.
机译：钛合金的激光焊接作为工业应用的传统连接技术的替代方法正引起越来越多的兴趣，特别是在航空航天领域，与其他传统机械连接相比，焊接组件可降低“买价”比。技术。在这项研究工作中，通过在不同工艺条件下进行的实验测试活动，对Ti-6Al-4V合金板进行激光焊接进行了研究，目的是对所产生的焊缝几何形状进行表征，最终目的是：发展一种认知方法论，以支持有关选择合适的激光焊接工艺参数的决策。该方法基于人工神经网络的使用，该人工神经网络能够根据收集的实验来确定激光焊接工艺参数之间的相关性，特别是参考激光功率，焊接速度和散焦距离以及焊缝几何特征数据。

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