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Hexcel launches composite HexPEKK EM electromagnetic shielding and radar absorptive materials

hexcel launches composite hexpekk em electromagnetic shielding and radar absorptive materials

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Hexcel is introducing its latest HexAM materials technology, HexPEKK EM – an electrically conductive, high-performance, PEKK-based thermoplastic carbon fiber composite additive manufacturing material offering industry-leading performance.
The move was to be expected given Hexcel’s leadership role in the composites market. The firm had acquired OPM’s PEKK SLS 3D printing technology to begin offering 3D printing service capabilities under the newly established HexAM brand. However in the beginning, HexAM focused exclusively on the unfilled PEKK powders originally developed by OPM. As EOS and Arkema moved to offer composite PEKK materials (HT-23) for SLS, it was logical to assume that Hexcel would also eventually move into this particularly interesting segment of AM.
The new HexPEKK EM material integrates advanced electromagnetic (EM) performance within complex 3D printed components for the commercial aerospace, defense, and military sectors. HexPEKK EM composite components are flight-ready after printing.
“The management of static electricity dissipation, electromagnetic interference, and radiation absorption is extremely important in the design of all air vehicles,” said Lawrence Varholak, Vice President of Additive Manufacturing at Hexcel, said. “The introduction of this advanced additive manufacturing material will enable the fabrication of extremely complex aerostructures with unparalleled structural and electrical functionality. It significantly reduces weight …

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Wilhelmsen and thyssenkrupp target 3D printing for shipping – Splash247

wilhelmsen and thyssenkrupp target 3d printing for shipping – splash247

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WilhelmsenSigning a joint venture letter of intent today, Wilhelmsen’s marine products division and Germany’s thyssenkrupp said they are aiming to re-examine and optimise the production and delivery process of 3D printed spare parts for the unique demands of the maritime market. The two are now expected to launch a joint venture company in Singapore shortly.Wilhelmsen has already built up a loyal following of customers for its additive printing deliveries since launching a new service 10 months ago. Clients include Berge Bulk, Carnival Maritime, Thome Ship Management, OSM Maritime Group and Executive Ship Management.They are realising the benefits of having more resilience in their spare parts supply chain“Based on current data, the maritime industry spends billions of dollars every year on spare parts; with 50% of these vessels are older than 15 years, availability of parts are limited. This makes fulfillment of orders for maritime spare parts costly and complicated, and in fact, the supply chain overheads involved may often far outstrip the cost of the part itself,” Wilhelmsen stated in a release today.Moreover, traditional manufacturing processes such as machining and casting often involve long lead-times stretching into months.“We are very excited to enter the next phase …

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Rapid 3D printing with visible light

rapid 3d printing with visible light

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3D printing has driven innovations in fields ranging from art to aerospace to medicine. However, the high-energy ultraviolet (UV) light used in most 3D printers to cure liquid resins into solid objects limits the technique’s applications. Visible-light curing, which would be more appropriate for some uses, such as tissue engineering and soft robotics, is slow. Now, researchers reporting in ACS Central Science have developed photopolymer resins that boost the speed of visible-light curing.
With the help of computer-aided design, 3D-printed objects are made by the successive layering of a material into a 3D shape, with each layer solidified or “cured” using UV light. Being able to use visible light for curing would have advantages, including reduced cost, improved biocompatibility, greater depth of light penetration and reduced light scattering. These attributes could open up new applications for 3D printing, such as making opaque composites, multi-material structures or hydrogels containing live cells. However, because visible light is lower in energy than UV, visible-light curing is currently too slow to be practical. Zachariah Page and colleagues wanted to find a way to speed up the process.
The researchers developed violet-, blue-, green- and red-colored resins that contained a monomer, a photoredox catalyst (PRC), …

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3D Printed Bike: The Most Amazing Projects | All3DP

3d printed bike: the most amazing projects | all3dp

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All3DP is an editorially independent publication. Editorial content, on principle, can not be bought or influenced. To keep All3DP free and independent, we finance ourselves through advertising and affiliate revenues. When you purchase using a shopping link on our site we earn an affiliate commission. Learn more
Riding in 3D Printed Style

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3D Printing Webinar and Virtual Event Roundup, September 27, 2020 – 3DPrint.com | The Voice of 3D Printing / Additive Manufacturing

3d printing webinar and virtual event roundup, september 27, 2020 – 3dprint.com | the voice of 3d printing / additive manufacturing

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A range of topics will be covered in this week’s roundup of webinars and virtual events, starting with controlled nesting and increased productivity. Moving on, attendees can learn how to maximize CAD software, and then how to scale 3D printing for production purposes. Read on for the details!
Optimizing Controlled Nesting for Build Prep Challenges

Materialise experts Katie Esper and Steven Ostrowski, together with AM Engineer Victor Lopez from the Parker Hannifin Corporation, will discuss how using optimized nesting from the Magics Sinter Module can help solve common build prep stage issues with MJF and SLS 3D printing in a free webinar, “How to Overcome Build Prep Challenges with Controlled Nesting,” on Tuesday, September 29th at 10 am ET. The three speakers will discuss how using the Magics Sinter Module to control the nesting process can allow you to triumph over these challenges, as well as lower costs and streamline the print process.
“Chances are you experience challenges similar to what many others struggle with during the build preparation stage for MJF or SLS. From high costs to fragmented workflows, this step of the printing process has plenty of room to for improvement. Thanks to optimized nesting, you can do …

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Houses 3D-printed in just 24 hours now shipping in California

houses 3d-printed in just 24 hours now shipping in california

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The Mighty Studio can be 3D-printed in 24 hours or less
Mighty Buildings

3D-printed houses aren’t just proof-of-concepts anymore. A company called mighty buildings is already selling and delivering their 3D-printing dwellings in California, with plans to expand into other territories in the future.We’ve covered 3D-printed buildings before, but Mighty Buildings sets itself apart from the competition in a handful of different ways, most obviously with their material.

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While other companies have been using concrete-based printing materials, what Mighty Buildings uses is more of a synthetic stone. The material cures almost instantly under UV light, hence the UV light panels on either side of the print head. Mighty Buildings’ synthetic stone material cures under UV light.
Mighty Buildings
The material cures quick enough to be printed horizontally without support, allowing for the printing of complex shapes and structures.While several companies pursuing 3D-printed construction have been gunning to print a house in 24 hours without interruption, Mighty Buildings co-founder Sam Ruben tells me they’ve achieved it partly because of their prefabricated approach.Instead of doing their printing onsite as …

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Chinese 3D Printing Startup Polly Polymer Raises RMB100 Million

chinese 3d printing startup polly polymer raises rmb100 million

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Suzhou Polly Polymer Technology Co., which focuses on the research and development of new polymer materials and applied to 3D printing use cases, received nearly RMB100 million yuan in a series A financing.
GSR United SDIC Fund-of-Funds jointed led the investment. Zhongxin Innovation and Kehui Venture Capital also participated.
Wang Wenbin, founder of Polly Polymer, said that the company has completed the R&D and pilot trials of mature 3D printing applications in the mass production of terminal parts and products.
This round of financing will be mainly used for the construction of smart factories that can produce 10,000 pairs of shoe midsoles and smart 3D printing in the fields of automobiles, home appliances, medical care, and consumption.
The Chinese 3D printing market is showing a trend of rapid development. According to the research report of CITIC Securities, China’s 3D printing market has achieved a rapid growth of nearly 4.5 times from 2015 to 2020, and its share of the global market has increased from 15% to 22%.
It is expected to be the world’s largest manufacturing base and consumer country in the next 5 years. China will develop rapidly with a compound annual growth rate of over 35% and become the core growth engine of …

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3D-printed nasal swabs work as well as commercial swabs for COVID-19 diagnostic testing, study finds

3d-printed nasal swabs work as well as commercial swabs for covid-19 diagnostic testing, study finds

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As COVID-19 quickly spread worldwide this spring, shortages of supplies, including the nasopharyngeal (nasal) swabs used to collect viral samples, limited diagnostic testing.
Now, a multisite clinical trial led by the University of South Florida Health (USF Health) Morsani College of Medicine and its primary hospital affiliate Tampa General Hospital (TGH) provides the first evidence that 3D-printed alternative nasal swabs work as well, and safely, as the standard synthetic flocked nasal swabs.
The results were published online Sept. 10 in Clinical Infectious Diseases. A commentary accompanying the paper cites the authors’ timely, collaborative response to supply chain disruptions affecting testing capacity early in the pandemic.
Seeking a solution to an unprecedented demand for nasal swabs at their own institution and others, USF Health researchers in the Departments of Radiology and Infectious Diseases reached out to colleagues at TGH; Northwell Health, New York’s largest health care provider; and leading 3D-printer manufacturer Formlabs. Working around the clock, this multidisciplinary team rapidly designed, tested and produced a 3D printed nasal swab prototype as a replacement for commercially-made flocked nasal swabs. Bench testing (24-hour, 3-day, and leeching) using respiratory syncytial virus as a proxy for SARS-CoV-2, as well as local clinical validation of the final …

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