Development Algorithm of the Technological Process of Manufacturing Gas Turbine Parts by Selective Laser Melting

2017 International Conference on Aerospace Technology, Communications and Energy Systems

航空航天工程;无线电电子学;能源学

Sotov, A.V.^1 ; Agapovichev, A.V.^1 ; Smelov, V.G.^1 ; Kyarimov, R.R.^1

Samara State Aerospace University, National Research University, Moskovskoe sh. 34, Samara

443086, Russia^1

关键词: Functional parts;    Laser emission;    Products quality;    Selective laser melting;    Synthesized materials;    Technological process;    Transversal directions;    Turbine parts;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/302/1/012065/pdf
DOI  :  10.1088/1757-899X/302/1/012065

学科分类：航空航天科学

来源: IOP

【 摘 要 】

The technology of the selective laser melting (SLM) allows making products from powders of aluminum, titanium, heat-resistant alloys and stainless steels. Today the use of SLM technology develops at manufacture of the functional parts. This in turn requires development of a methodology projection of technological processes (TP) for manufacturing parts including databases of standard TP. Use of a technique will allow to exclude influence of technologist's qualification on made products quality, and also to reduce labor input and energy consumption by development of TP due to use of the databases of standard TP integrated into a methodology. As approbation of the developed methodology the research of influence of the modes of a laser emission on a roughness of a surface of synthesized material was presented. It is established that the best values of a roughness of exemplars in the longitudinal and transversal directions make 1.98 μm and 3.59 μm respectively. These values of a roughness were received at specific density of energy 6.25 J/mm2that corresponds to power and the speed of scanning of 200 W and 400 mm/s, respectively, and a hatch distance of 0.08 mm.