Direct SLS of powder compositions used for self-propagating high-temperature synthesis

The conditions of a direct selective laser sintering (SLS) were resea;rched experimental in a volume and by layers for the eutectic and near-eutectic powder compositions, which usually used for the self-propagating high-temperature synthesis (SHS) technology. It was shown a possibility to realise during SLS process a control exothermic reaction of combustion exactly in the focus ofew-Iaser beam on Nd-YAG. The necessary parameters of a laser influence (a power, scan velocity and diameter'of the laser beam), a dispersion and composition of the powder mixtures were determined for the such regime. The 3D parts from intermetallic compounds were created without any post-process procedures, that expands the functional opportunities ofthe sintering models.