How strong are the objects printed through a 3D printer?

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How strong are the objects printed through a 3D printer?

Postby 3dtech » Fri May 26, 2017 11:22 pm

It depends".

For FDM / FFF 3D printers (MakerBot, Ultimaker etc), which are the most commonly known ones for personal use, the end product strength is not very high at all. Especially along the layer perpendicular, shear strength is extremely low - in plain English, if you pull vertically on a FDM printed object, it will take relatively low strength to rip the object open along a layer line. 3d printing delhi india - sla technology

Resin 3D prints (Form1, B9 Creator, and other SLA and DLP printers) are nearly as strong as the resin's material datasheet would indicate - there is a marginal reduction in shear strength due to differential curing of the resin at each layer.

Direct Metal Laser Sintering (DMLS) printed objects again have far lower shear strength than the material datasheets would indicate, but the DMLS created object is almost always post-processed by heat annealing and other traditional metal strengthening methods, so the end result product can potentially be nearly as strong, or sometimes stronger (by using innovative internal geometries), than via traditional methods.

DMLS is used to create jet engine turbine parts, and other high stress objects, because of this strength capability. However, DMLS is not yet (as far as I know) in the realm of personal / desktop 3D printing.
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