Mechanics & Industry
Volume 17, Number 7, 2016STANKIN: Advanced scientific studies and research in Mechanical Engineering
|Number of page(s)||10|
|Published online||30 December 2016|
Study of layers’ structure defects of 3D objects obtained by selective laser melting
Moscow State University of Technology “STANKIN”, 1 Vadkovsky per., Moscow GSP-4, 127994, Russian Federation
a Corresponding author: email@example.com
Received: 23 November 2016
Accepted: 12 December 2016
Current work was aimed to study of layers’ structure defects of 3D-objects obtained by selective laser melting with the modulated laser beam mode. Traditionally Gaussian laser beam mode uses for the processing in selective laser melting. On the developed experimental setup, the alternative laser beam modes as Flat-top and Inverse Gaussian were obtained. With the carried out experiments 3D-objects contained 10 layers were produced from CoCrMo powder with the diameter of granules less than 20 μm. The layers’ structure defects as penetration of the substrate material into the body of produced objects were studied by optical and scanning electronic microscopy.
Key words: Selective laser melting / 3D-object / laser beam mode / laser beam power density distribution / CoCrMo powder / structure defects / SEM
© AFM, EDP Sciences 2016
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