All posts filed under: Additive Fabrication

Direct Additive Fabrication of Metal Parts and Injection Molds

There are many ways to apply direct additive fabrication of metal parts and injection molds which are as follows: Laser Sintering – used frequently to create today’s tools and metal parts. A supplier that exclusively focuses on this process makes systems that are mainly dedicated to metal or plastic materials. It provides a range of metal material that include titanium, nickel alloys, cobalt chrome, aluminum, and stainless and hardened steels. Selective Laser Melting(SLM) – is similar to laser sintering; however, ceramic powders or fully melts metal directly form fully dense parts. No steps of post processing, such as infiltration or burnout, are needed as with the production of porous parts by laser sintering even though it’s still necessary for some finish machining. Electron Beam Melting(EBM) – originally developed at the Chalmers University, this process is powder based in which has much in common with laser sintering. However, the laser is replaced with a scanned 4KW electron beam that makes fully dense parts. Available material includes pure titanium, titanium alloy (Ti-6A1-4V), Arcam Low Alloy Steel, and …

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Functional Parts and Tools by Additive Fabrication – Direct Fabrication and Indirect or Secondary Processes

Additive fabrication is a class of manufacturing procedures where a part is built by adding material layers upon one another. This process has been evolutionary in different manufacturing applications. And as a result, it is now an accepted solution in fabricating customized, geometrically complex, or low volume parts, and it’s recognizable in producing tools and parts that are not possible to combine and form into various materials. Though many applications are hidden from the public and are still in development, their ranges are potentially vast. Even some of the technology’s liabilities are transformed into advantages. Also, additive technology is utilized by directly fabricating items, such as molds and parts, or it is utilized through secondary or indirect purposes. Direct Fabrication Plastic and metal parts are often directly fabricated. With plastic parts, stereolithography, thermoplastic extrusion methods, and laser sintering (LS) are currently the most important forms used in direct fabrication. Stereolithography is a process in creating objects that are three dimensional with using a laser beam controlled by a computer that builds the required structure from …