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Published on: 11 Feb 2017 by tedenron
3D printing is also known as additive manufacturing, a process of creating a kind of 3-D solid object obtained from a digital file. This application has revolutionized the technology and printing world. These 3D printing technologies are here to stay and to alter the manner in which objects are developed. Large scale manufacturing is already underway and this will soon be the biggest trend. With a home 3D printer all you need is your imagination and you can create whatever you want.
Here are some of the latest 3D printing technologies:
Material Jetting (PolyJet and MultiJet Modelling)
This technology offers the most accurate and realistic prototypes. This object development process begins with the printer jetting the liquid material onto a build tray. Drops of liquid photopolymer are solidified by UV light. The process repeated itself and each time thin layers are collected on the build tray and an object is built.
Fused Deposition Modeling (FDM)
This is the most common technology that is used for Desktop 3D printing. It is the best for those looking for low-cost prototyping. The printing process starts with a filament, which is a string of solid material. The filament is set in a line which is guided from a reel attached to the 3D printer. The printer has a heated nozzle that melts the filament. The melted material is extruded on a specified and predetermined path that is created by software installed on the computer. The melted filament is extruded as a layer of the object set on its path as it cool and solidifies. This provides a foundation of the next layer of material and the process continues until the object is created.
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Binder Jet technology is best for creating sculptures and models from sandstone. It uses a binding agent ejected from a nozzle to bind the binging agent. Once the first layer of the object is set, a nozzle spreads the binding agent together with the binding powder. The first layer is then fused with the binding agent and a thin layer of the new powder is spread on the object. The process repeats itself until an object is formed.
Metal Printing (Selective Laser Melting and Electro Beam Melting)
This technology is used in industrial printing to come up with prototypes and parts from metals and alloys. It uses melting processes, selective laser melting and electro beam melting which create objects from layers of metal powder. The machine distributes this powder onto a building platform. The powder is then melted by the laser or electronic beam and then lowered for coating with a new layer of metal powder on the top. This process continues until the set object is developed.