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  1. Laser sintering of titanium gains importance

    The main applications for laser sintered titanium are in medical and dental devices, aerospace and motor sports, and the fashion industry FIGURE 1. Dental implant screws are produced using a hybrid structure comprising a fully dense body with a porous surface morphology. Click here to enlarge image Laser sintering using EOSINT M-270 systems from EOS (Krailling, Germany; www.eos.com) is a production method for many titanium applications where the conventional methods of casting, forging, and machining are often difficult and expensive. Following the EOS e-Manufacturing concept, titanium is also often used for high-value components produced in relatively small quantities. And the capability to easily build hollow and other lightweight structures by laser sintering offers many possibilities to improve the performance and therefore the value of titanium parts in weight-critical applications such as aerospace components. Titanium alloys have excellent mechanical properties and corrosion resistance combined with low specific weight and good biocompatibility. So far the main applications for laser sintered titanium are in medical and dental devices, aerospace and motor sports, and the fashion industry. The most commonly used material is EOS Titanium Ti64, which is Ti6Al4V alloy in fine powder form. In some medical cases an extra-low interstitial (ELI) version of this powder is used or commercially pure titanium powder. The following examples show the impressive scope of application areas in which laser sintered titanium can be used. FIGURE 2. Laser sintering enables the design of unique jewelry shapes. Click here to enlarge image Leader Italia s.r.l. (www.leaderitalia.it), a pioneer in the production of medical devices in titanium by laser sintering, has developed a special range of innovative dental implant screws called TiXos, which have been specially designed for production on EOSINT M-270 systems using titanium material, and include unique advantages (see FIGURE 1 ). Conventionally such screws are machined from solid metal. In laser sintering, the screws are grown by melting the metal powder together, so material wastage is avoided. The laser exposure is controlled to produce a hybrid structure comprising a fully dense body with a porous surface morphology, which eliminates the need for coating and offers enhanced bioactivity. It is also a highly productive process. Because no tooling is needed, different types and sizes of screw can be produced within each job, according to demand. The result is efficient and flexible series production of a high-performance product. Laser sintering enables the company to computer-design and manufacture dental implants and relative surfaces characterized by intercommunicating cavities that replicate the bone structure—which is impossible to obtain through traditional surface treating processes. FutureFactories (www.futurefactories.com), a UK-based company, has been leading the way in applying the unique possibilities of e-Manufacturing to the creation of novel fashion and consumer products. In recent years they have used laser sintering to create plastic lamps and chairs as well as metal jewelry products with eye-catching geometries, which typically would be difficult or impossible to manufacture in other ways. FutureFactories broke new ground by producing a limited edition of commercial products, each one unique but based on a common meta-design, thereby implementing mass-individualization. The design is highly complex, comprising intertwining free-form shapes, and was implemented in titanium because it would be virtually impossible to produce by conventional methods—soldering, which is commonly used in jewelry, cannot be applied to titanium. The laser sintered pendants are built fully dense and polished to produce the desired aesthetic appearance (see FIGURE 2 ). FIGURE 3. Art Nouveau designs in footwear are achieved by rapid prototyping. Click here to enlarge image Kerrie Luft (www.kerrieluft.com) a British footwear designer is creating unique shoes embracing new technologies such as laser sintering. In her latest collection “Nouveau” she defines the characteristics of Art Nouveau by rapid prototyping titanium to create the complex geometry of the heel. She has created innovative shapes within both the upper of the shoes and the heels. The filigree structures of the high heels required a high strength material, and titanium was chosen as being ideal. The resulting shoes of her MA collection—with revolutionary heel designs using laser sintered titanium (see FIGURE 3 )—were showcased in London. There is certainly still much more to be discovered and advanced in the application of laser sintered titanium to many fields. For more information on EOS GmbH Electro Optical Systems contact Claudia Jordan at claudia.jordan@eos.info.   More ILS Issue Articles  

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    Sun, 1 Nov 2009

  2. Northwest UAV Propulsion Systems purchases EOS laser sintering equipment

    EOS GmbH Electro Optical Systems, a manufacturer of laser sintering systems, has announced that Northwest UAV Propulsion Systems (NWUAV), an aerospace supplier, has purchased an EOSINT P 390 plastics laser - sintering machine. Northwest is using the equipment to produce high-quality aircraft ...

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    Wed, 11 Jun 2008

  3. Laser -sintered orthopedic implants

    San Diego, Calif. – At this week’s American Academy of Orthopedic Surgeons (AAOS) annual meeting, EOS is displaying at its booth a working direct metal laser - sintering system (DMLS) with a variety of plastic and metal medical devices. The show runs February 15 to 19 at the San Diego Convention ...

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    Tue, 15 Feb 2011

  4. Laser sintered wearable art debuts at 3D Printshow

    A headdress laser sintered on an EOS additive manufacturing system was a highlight of the exhibition’s fashion show.

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    Tue, 14 Jan 2014

  1. EOS tops 1000 installed laser sintering systems

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    Fri, 4 Nov 2011

  2. Modified laser cutting system becomes an open-source laser sintering platform

    A commercial CO 2 laser cutting system was modified to create an open-source selective laser sintering (SLS) platform.

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    Fri, 26 Feb 2016

  3. Direct metal laser sintering system

    The EOS M 100 direct metal laser sintering (DMLS) system targets those considering entry into additive manufacturing.

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    Mon, 21 Mar 2016

  4. Cooksongold launches direct-metal laser sintering

    Cooksongold, together with additive manufacturing design solutions provider EOS, has launched the PRECIOUS M 080 direct-metal laser sintering (DMLS) system at the Hong Kong Jewellery and Gem Fair 2014.

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    Mon, 22 Sep 2014

  5. Laser sintering powder

    Prodways has launched the TPU-70A thermoplastic polyurethane material for use with laser sintering technology.

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    Wed, 4 May 2016

  6. Laser sintering emerges as the technology of choice, Wohlers Report says

    Frankfurt am Main/ Germany – This year’s Wohlers Report on the state of the additive manufacturing industry includes a striking statistic: When global service providers were asked which technology they would most likely add, the most popular response was laser sintering from EOS, followed by ...

    Online Articles

    Online Articles

    Tue, 7 Dec 2010

  7. EOS, IMDS to make medical devices with laser sintering

    EOS Electro Optical Systems (EOS) and medical device maker Innovative Medical Device Solutions (IMDS) are partnering to make new products using EOS' laser additive manufacturing technology.

    Online Articles

    Online Articles

    Fri, 21 Sep 2012

  8. ARC Group purchases direct metal laser sintering systems

    The two EOS M 280 DMLS systems increases ARC’s ability to manufacture complex parts out of materials such as stainless, tool, and maraging steel.

    Online Articles

    Online Articles

    Thu, 13 Mar 2014

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