3D Printing Technology SLA: Stereolithography

Printing

This technique was invented by Charles Hull in 1984 and consists of using an ultraviolet laser beam to cure a photo polymer, that is, stiff a polymer light-sensitive. A platform submerged in a reservoir is capable of moving vertically and the UV ray is drawn on a thin layer, the build section. The tour hardens into solid materials. Below the lower platform, leaving another layer to the next section.

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A new 3D printing technology wants to propose an alternative to industrial production

3D Printed

The evolution of 3D printers still trying to propose alternatives to manufacturing processes, and now comes an alternative that could be useful in the transition. Neil Hopkinson, a professor of mechanical engineering at the University of Sheffield, has already been working in high-speed sintering, and the technology is already in an advanced stage of development.

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FDM Technology fused deposition modeling

Printing

One of the main additive prototyping systems is fused deposition modeling or FDM material. It was developed by Scott Crump and sold by Stratasys since 1991 consists of a table with an automated vertical motion and head movements in two planes orthogonal. The head functions as extrude fed by a filament of thermoplastic material and heating it to melt. Each section or layer of the piece is constructed by depositing the material on a base. Once the coating is completed, the lower table to continue to the next.

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