Parameter optimization for selective laser melting of TiAl6V4 alloy by CO2 laser

2017 International Conference on Structural, Mechanical and Materials Engineering

材料科学;力学

Baitimerov, R.M.^1 ; Lykov, P.A.^1 ; Radionova, L.V.^1 ; Safonov, E.V.^2

South Ural State University, Lenin avenue 74, Chelyabinsk, Russia^1

Moscow State University of Mechanical Engineering, Bolshaya Semenovskaya 38, Moscow, Russia^2

关键词: Additive manufacturing technology;    Cubic specimens;    Dense structures;    Parameter optimization;    Powder bed;    Process parameters;    Selective laser melting;    Surface finishes;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/248/1/012012/pdf
DOI  :  10.1088/1757-899X/248/1/012012

来源: IOP

【 摘 要 】

TiAl6V4 alloy is one of the widely used materials in powder bed fusion additive manufacturing technologies. In recent years selective laser melting (SLM) of TiAl6V4 alloy by fiber laser has been well studied, but SLM by CO2-lasers has not. SLM of TiAl6V4 powder by CO2-laser was studied in this paper. Nine 10×10×10 mm cubic specimens were fabricated using different SLM process parameters. All of the fabricated specimens have a good dense structure and a good surface finish quality without dimensional distortion. The lowest porosity that was achieved was about 0.5%.