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PRODUCTS ADDITIVE MANUFACTURING/3D PRINTING
TEXTURE LIBRARY VISUALLY ENHANCES THE SURFACE OF 3D PRINTED PARTS
CoreTechnologie has equipped its 3D printing software 4D_Additive with a special texture library that is based on the VDI 3400 guideline. With the new texture library, surfaces of 3D printed components can be visually and functionally enhanced with just a few clicks. According to the company, the textures of the optimised 4D_Additive Software tool
improve the appearance, giving additively manufactured components an aesthetic look and conceal irregularities that occur during production and printing. The surface finishes of the VDI 3400 Surface Finish Guideline of the Association of German Engineers (VDI) are used worldwide for products for which a certain texture or grain is desired for aesthetic and functional reasons. Developed to be easy to use, designers and engineers simply select the right texture for
surface design and surface finishing from the extensive texture library. The 4D_Additive software works directly with the exact CAD models. The desired surfaces and texture areas are selected with just a few clicks and the surface structures predefined in the library are generated. The stair-stepping effect, which is particularly undesirable in 3D printing, is automatically concealed. In contrast to the time-consuming process of creating textures in toolmaking, additive
manufacturing allows surface design to be created on any 3D/CAD geometry in just a few seconds using the software, the company explains. The relevance of surface finishing is increasing, particularly in the increasingly important
process of additively manufactured small series parts. From a commercial perspective, products with high surface quality and aesthetics that are provided with textures and graining are more attractive to customers and convey a higher quality standard.
CoreTechnologie
www.coretechnologie.com 3D PRINTED CRANIAL IMPLANTS GAIN FDA APPROVAL
The Food and Drug Administration (FDA) has provided 510(k) clearance for 3D Systems’ 3D-printed, patient-specific cranial implant solution – VSP PEEK Cranial Implant. VSP PEEK Cranial Implant includes a complete FDA-cleared workflow comprising segmentation and 3D modelling software, the 3D Systems EXT 220 MED 3D printer, Evonik VESTAKEEP i4 3DF PEEK (polyetheretherketone), and a pre-defined production process. By using additive
manufacturing solutions, the technology can produce patient- specific cranial implants with up to 85% less material than similar implants produced by traditional machining. Furthermore,
the cleanroom-based architecture of the printer, combined with simplified post- processing workflows, makes it an ideal technology for producing patient-specific medical devices at the hospital site with faster turnaround while keeping the overall cost under control. To date, this solution has
52 DESIGN SOLUTIONS MAY 2024
been used to enable nearly 40 successful cranioplasties in Switzerland at University Hospital Basel, in Austria at Salzburg University Hospital, and in Israel at Tel-Aviv Sourasky Medical Centre. The VSP PEEK Cranial Implant is the
first FDA-cleared, additively manufactured, PEEK implant intended for cranioplasty procedures to restore defects in the skull. This implant-grade, high-performance polymer has a well-known clinical history in medical device applications due to its exceptional performance with mechanical properties closely mirroring human bone. PEEK also has excellent
biocompatibility, resistance to bodily fluids, and stability in a wide range of temperatures. In addition, its inherent radiolucency ensures minimal interference in medical imaging.
3D Systems
www.3dsystems.com
AM COMPONENTS TO
TAKE TO THE TRACK AT THE PARIS 2024 GAMES
As official additive manufacturing partner to British Cycling, Renishaw has provided components for the newly unveiled Olympic track bike for Paris 2024. The company has helped to design and manufacture such components as the crank, seat stay bridge and dropouts, as well as a first-of-its-kind seat post created in aluminium. According to the company, using additive
manufacturing (AM) to manufacture these parts allows the British Cycling team, alongside Renishaw, to change the design throughout the process and create complex and aerodynamic geometries. It helped to design the internal structure of the titanium crank, to deliver an optimised lightweight part. By using an internal lattice structure that is not possible using other manufacturing methods, Renishaw has been able to maintain the strength of the part, whilst keeping it lightweight enough to accommodate the overall weight limits for the bike. “After Team GB brought home seven Olympic medals from the Tokyo Olympics, we were delighted to be asked to continue our partnership with the British Cycling team and develop components for the Paris 2024 bike,” commented Ben Collins, lead additive manufacturing application engineer at Renishaw. “Bringing together the best of British engineering talent, we have been able to refine the design even further and showcase how additive manufacturing can deliver strong, yet lightweight parts for cycling, while demonstrating these benefits to other industries. Every bike is tailored to the measurements of the athletes, which is more difficult and costly using traditional manufacturing techniques, so it’s a great example of the role of AM in bespoke manufacturing.” The new bike will be ridden by Great Britain’s
cyclists at the Paris 2024 Olympics track cycling events which take place between August 5th and 11th at the Paris 2024 Olympic Games National Velodrome.
Renishaw
www.renishaw.com
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