Customized exposure strategies for manufacturing hybrid parts by combining laser beam melting and sheet metal forming
Customized exposure strategies for manufacturing hybrid parts by combining laser beam melting and sheet metal forming
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DOI：
10.2351/1.5096115
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发表时间：
2019-05-01
影响因子：
2.1
通讯作者：
Schmidt, Michael
中科院分区：
文献类型：
--
作者：
Huber, Florian;Papke, Thomas;Schmidt, Michael
这项工作的主题是机械，几何形状和微观结构性能的混合零件从Ti6A14V金属板弯曲和激光束熔化（LBM）的扩展LBM工艺参数的依赖。在这种情况下，不同的激光曝光策略的界面区域，以增加接头强度的再现性的影响进行了研究。此外，不同的扫描模式和两个不同的激光束源（高斯光束轮廓，光斑尺寸：120 μ m，最大激光功率：400 W和不规则的光束轮廓，光斑尺寸：680 μ m，最大激光功率：1000 W）的LBM过程和所产生的零件的变形的效果进行检查。此外，将450、850和1050摄氏度的三个热处理温度应用于混合样品，导致金属板体和LBM结构的可变微观结构和不同的机械性能。
Subjects of this work are the mechanical, geometrical, and microstructural properties of hybrid parts from Ti6A14V sheet metal bending and laser beam melting (LBM) in dependence of the extended LBM process parameters. In this context, the effects of different laser exposure strategies for the interface area to increase the reproducibility of the joint strength are investigated. Also, the effect of varying scan patterns and two different laser beam sources (Gaussian beam profile, spot size: 120 mu m, maximum laser power: 400 W and irregular beam profile, spot size: 680 mu m, maximum laser power: 1000 W) on the LBM process and the resulting distortion of the parts are examined. Furthermore, three heat-treatment temperatures at 450, 850, and 1050 degrees C were applied to the hybrid samples, resulting in variable microstructures and different mechanical properties for the sheet metal body and the LBM structure.