Laser Welding Modes Optimization of the Selective Laser Melted Ti-6Al-4V Thin-Thickness Parts with Complex Shape

被引：1
作者：
Larin, Maksim [1 ]
Pevzner, Yakov [1 ]
Shalnova, Svetlana [2 ]
Petrovskiy, Pavel [3 ]
机构：
[1] State Marine Tech Univ, Inst Laser & Welding Technol, St Petersburg 190121, Russia
[2] State Marine Tech Univ, World Class Res Ctr Adv Digital Technol, St Petersburg 190121, Russia
[3] Natl Univ Sci & Technol MISIS, Moscow 119049, Russia
来源：
METALS | 2021年 / 11卷 / 12期
关键词：
laser welding; selective laser melting; Ti-6Al-4V; design of experiment; MECHANICAL-PROPERTIES; TITANIUM; MICROSTRUCTURE; WELDABILITY;
D O I：
10.3390/met11122013
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The paper studies laser welding of thin-thickness Ti-6Al-4V parts, manufactured by selective laser melting (SLM). A full factorial experiment was carried out in order to construct a regression model of the technological parameters (laser power, welding speed, and defocusing amount) which influence the weld shape. Metallographic analysis was carried out and it was found that thermal cycles of product printing and laser welding are equivalent. The microhardness analysis also showed no differences between the weld metal and the base metal. The contour plots of the parameters influence on the response function was constructed, and the area of welding modes was determined.
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页数：9
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