{"id":3140,"date":"2020-10-14T11:47:00","date_gmt":"2020-10-14T09:47:00","guid":{"rendered":"https:\/\/dev.francescaricci.it\/la-stampa-3d-tecnologie-a-confronto\/"},"modified":"2022-07-15T17:30:18","modified_gmt":"2022-07-15T15:30:18","slug":"3d-printing-technologies-in-comparison","status":"publish","type":"post","link":"https:\/\/www.medics3d.com\/en\/3d-printing-technologies-in-comparison\/","title":{"rendered":"3D printing technologies in comparison"},"content":{"rendered":"\t\t
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Born in 1986<\/strong> with the publication of Chuck Hull<\/u><\/strong><\/a> patent (he was the inventor of stereolithography and founder of the Company 3D Systems), 3D printing has evolved and differentiated over time, thanks to the introduction of new printing techniques<\/strong> and numerous materials <\/strong>with specific mechanical characteristics, usable both individually and in combination.<\/span><\/p>\n

This variety has allowed 3D printing to spread more and more, so that today you can see it applied in the most different fields<\/strong>: from architecture to automotive, from jewelry to the aerospace industry, from hosiery to the medical and dental sector.<\/span><\/p>\n\n

FDM, SLA, SLS and POLYJET: features, advantages and disadvantages of 3D printing major techniques <\/strong><\/h3>\n\n

Each 3D printing technology has specific features<\/strong> and – inevitably – a number of advantages<\/strong> and disadvantages<\/strong> that differentiate it from the others.<\/span><\/p>\n

Let\u2019s see together the peculiarities and all the main strengths and weaknesses of the four most used techniques today<\/strong>: FDM, SLA, SLS e POLYJET.<\/span><\/p>\n

FDM <\/strong>(fused deposition modeling)<\/span><\/p>\n

FDM is an additive production process belonging to the material extrusion family<\/strong>. This 3D printing technique allows you to make objects from a solid filament<\/strong>, which is then melted and deposited<\/strong> layer by layer by the 3D printer head. The materials used are thermoplastic polymers<\/strong>.<\/span><\/p>\n

\u00a0<\/div>\n

The most known polymers used in the FDM method are PLA<\/strong> (polylactic acid) and ABS<\/strong> (acrylonitrile butadiene styrene).The PLA is usually extruded at a melting temperature varying between 180 \u00b0C and 220 \u00b0C, while the ABS between 220 \u00b0C and 250 \u00b0C. Contrary to the latter, the PLA does not emit potentially damaging fumes when melted and processed. However, ABS printed objects are less fragile, more resistant to high temperatures and more flexible.<\/span><\/p>\n

Today FDM is the most popular 3D printing technology<\/strong>: it represents the largest installed 3D printer base in the world and is often the first technology to which people are exposed, thanks to the media visibility<\/strong> of which it enjoys.<\/span><\/p>\n

Post-production<\/strong> of FDM printing models is done by removing the supports manually or with soluble supports in different types of solvents.<\/span><\/p>\n\n

Pro:<\/strong><\/p>\n\n

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  1. \n

    Cheap technology<\/p>\n<\/li>\n

  2. \n

    Biocompatible materials<\/p>\n<\/li>\n

  3. \n

    Soluble supports<\/p>\n<\/li>\n

  4. \n

    Good mechanical resistance<\/p>\n<\/li>\n

  5. \n

    Recyclable materials<\/p>\n<\/li>\n

  6. \n

    Printing in multiple materials (up to 4)<\/p>\n<\/li>\n

  7. \u00a0<\/li>\n<\/ol>\n\n

    Contro:<\/strong><\/p>\n\n

      \n
    1. \n

      Low print speed<\/p>\n<\/li>\n

    2. \n

      No materiali transparent materials<\/p>\n<\/li>\n<\/ol>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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