Physical-mechanical properties of volumetric products synthesized by selective laser agglomeration | Mekhanika | kompozitsionnykh | materialov i konstruktsii
> Volume 5 > №3 / 1999 / Pages: 39-48

Physical-mechanical properties of volumetric products synthesized by selective laser agglomeration

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Abstract:

We present the results of investigation of elementary physical-mechanical characteristics of volumetric products synthesized by the selective laser agglomeration (the SLA method) from powder metal-polymeric compositions. For the models synthesized under optimal parameters, we determine the limits of elasticity and destruction, the Young modulus, the linear, surface, and volumetric specific compression ratios. As a result of the Brinell test, we obtained Poison’s ratio, the porosity factor, the permeability index, and the thermal-expansion coefficient. We also study the surface roughness and accuracy of reproduction of the external surface. It is revealed that the method of selective laser agglomeration of volumetric products made from powder mixtures allows us to produce three-dimensional articles from composite materials, whose characteristics have no analogues.

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