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3D Printing News Briefs: April 28, 2019

We’re getting the business out of the way first, then moving on to awards and rewards in this edition of 3D Printing News Briefs. CECIMO has expressed its approval of a new 3D printing nomenclature standard, and there’s a new design competition in town. Weerg announced the winner of its 3D Printing Project Award, and Formlabs is rewarding its loyal customers with a discount. Finally, a 3D printed Harry Potter statue flies high at a store in India.

CECIMO Welcomes New Classification Provision for 3D Printers

CECIMO, the European Association of the Machine Tool Industries, is glad to hear about the approval and introduction of a new product nomenclature standard, used by over 200 countries, for additive manufacturing systems. The nomenclature, known as Harmonized System and used by authorities to classify goods in international trade, is maintained by the World Customs Organisations (WCO). The classification code was first proposed by the EU on the basis of input from CECIMO, and will improve statistics collection on the international trade of AM machines by material used, in addition to promoting the inclusion of these systems in bilateral or multilateral trade deal talks around the world. The new code will go into use starting January 1, 2022.

“Standardization is of vital importance in the industrialization of AM. Work is progressing on standards on materials, processes and applications,” said Filip Geerts, Director General at CECIMO. “In addition to standardization, we are glad to have contributed to the inclusion of AM machines in the systematic list of commodities applied by most trading nations in the world. This action will fill another vacuum in the standards’ landscape, leading to greater official intelligence on AM machine market dynamics and, therefore, helping to draft more accurate strategies for the AM sector.”

Conserv Opened New Design Competition

Alabama tech startup Conserv, which builds sensor solutions to help places like museums, archives, and libraries preserve cultural heritage, is a big fan of 3D printing and rapid prototyping. Conserv has heard from its customers that they want to “minimize the visual disruption caused by things other than the art in a space,” which is why it’s decided to hold its own 3D design competition to find the next design iteration for its sensor platform. The prize for the winning design, which will be chosen by the startup’s own customers, is $5,000 cash.

“While sensors are necessary to ensure the integrity of a collection, they often look out of place, not in harmony with the carefully curated objects that people come to see,” the competition description states.

“How can we change that?  How can we push the art of sensor design further so it looks more like, well, art!  What does great look like in this space? How can we design a device that doesn’t look out of place in a gallery curated by the most discerning professionals while still retaining all of the features that fulfill demanding technical requirements?  Can we create an object that is unassuming and functional, designed to blend in, but at the same time elicits joy when it is noticed?”

Requirements include that the solution must be designed for wall mounting, with vents for air flow, to blend into a museum environment, and for a high volume manufacturing process, like injection molding. Entrants need to provide a design sketch or rendering and a description of how the design meets the requirements, and a 3D model file for a 3D printed prototype of the device, by May 17th. For other questions and details, email nmcminn@conserv.io.

Winner Announces for Weerg 3D Printing Project Award

Earlier this month, Italian 3D printing and CNC machining platform Weerg opened the second edition of its 3D Printing Project Award contest, which promotes creativity, experimentation culture, and innovation in design manufacturing. This week, Weerg announced that Benjamin Nenert, a designer and specialized technician for Porsche, is the winner of its 2019 3D Printing Project Award: a €500 Weerg voucher. Nenert, who lives in France, also manages his own vintage Porsche repair and refurbishment business, Ben Auto Design on top of his day job. His award-winning project is a component for a 1983 Porsche engine that he’s currently restoring.

“It is a very important component because it will allow you to extract more power from the engine by converting it to a more modern electronic management system. I could also have tried to modify the original part, but it would have taken a long time, with a very bad result for the performance I was aiming for,” Nenert explained. “The 3D-printed part has all the requirements I was looking for: perfect design, heat resistance up to 100 °C and sturdiness.”

Formlabs Offering Loyalty Discount to Customers

In a very smart move, Formlabs is wisely rewarding its loyal customers with a great discount if they’re interested in upgrading their Form 2 3D printer to the new Form 3 or Form 3L. The company explained that customers simply need to confirm the ownership of their own Form 2 by May 31st, 2019 in order to receive a €500 discount on the purchase of a Form 3 or Form 3L. Then they can add to their fleet of Formlabs systems; again, this is a good choice by Formlabs in order to keep its customers coming back for more.

To confirm your Form 2 and receive your loyalty discount, share an image of the serial name on the printer’s back panel in the format “AdjectiveAnimal.” You can either get in touch with a member of the company’s sales team, or submit the information online. You’ll either get your unique loyalty discount through an email within one business day, or the sales team will apply it to your purchase. Redeem the discount in the Formlabs online store, or contact the sales team, to buy your discounted Form 3 or Form 3L 3D printer.

STPL 3D Makes 3D Printed Harry Potter Statue

India-based rapid prototyping services company STPL 3D Printing (STPL3D) is continuing with its 3D printed statues of fictional characters. Not long after we heard about the 3D printed Spiderman statue the company made for a customer, another one of its clients requested a 5-foot 3D printed sculpture of Harry Potter for their store. STPL3D had just five days to transform the 2D images it was given into a detailed sculpture, and they got right to work. The company’s in-house designer divided the job into 25 smaller parts that would be easy to print, and once these were completed and post-processed, the team assembled the statue and delivered it to the client’s merchandise store. Using STPL3D’s technology and service, the client had a 40% reduced cost, 70% weight reduction, and saved nearly a month of time on the project.

“3D printing helps artists transform ideas into tangible works of art. Artists from creative and entertainment domains can truly unleash their imagination to create new and exciting objects. 3D printed art models aims to expand the horizons of design and foster a culture of aesthetic innovation,” said STPL3D’s CEO Rahul Gaywala.

Discuss these stories and other 3D printing topics at 3DPrintBoard.com or share your thoughts in the comments below.

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3D Printing News Briefs: October 16, 2018

We’re starting with some business news in today’s 3D Printing News Briefs, including stories about a new 3D printer, an anniversary, and a 3D printing investment. Cincinnati Incorporated has launched a new high temperature version of its SAAM 3D printer, and EOS will supply Visser Precision with five new metal 3D printers, including its M 400-4. VBN Components celebrates its tenth anniversary, and an Israeli 3D printing startup has received about $400,000 in funding. Researchers in Iran have successfully 3D printed flexible electronic circuits, and 3D printing was used to replicate a Chinese grotto. Finally, the Golf Channel will be featuring 3D printed golf clubs tonight.

New High Temperature Version of SAAM 3D Printer

Last week at FABTECH 2018 in Georgia, build-to-order machine tool manufacturer Cincinnati Incorporated (CI) launched a brand new high temperature version of its SAAM (Small Area Additive Manufacturing) 3D printer series. The SAAM HT 3D printer has a nozzle that can sustain temperatures up to 450°C and a bed temperature up to 260°C, which makes it possible to process materials like polycarbonate, PEEK, and ULTEM. Courtesy of its continuous patented automatic-ejection mechanism, the SAAM HT can be used for small batch production, and is a good choice for manufacturing tooling involved in high temperature operations.

“All materials compatible with SAAM can be used on the HT version. This level of versatility makes it a valuable asset in any manufacturing setting. We are enabling manufacturers and engineers to create the custom parts they need for their most demanding applications,” said Chris Haid, the General Manager of the NVBOTS Business Unit at CI.

EOS Supplying Visser Precision with New Metal 3D Printers

EOS M400-4

Denver-based Visser Precision, which provides advanced metals manufacturing solutions, has doubled its metal 3D printing capacity, thanks to the terms of an agreement reached with EOS at the recent IMTS trade fair. Visser has purchased three EOS M 400-4 3D printers, and two of the recently introduced EOS M 300-4 systems, making it the first organization to acquire the new platform. Market demands for DMLS-quality metal components in industries like aerospace and defense led Visser to grow its metal 3D printer capacity, and the new EOS systems will be delivered in a few months.

Ryan Coniam, the President of Visser Precision, said, “Our customers require the highest-performance, highest quality components and we feel partnering with EOS – the metal AM industry pioneers and leaders in DMLS – provides us with the capabilities we need to meet market demands now and in the next few years. Nearly anyone nowadays can 3D print something in metal, the trick is repeatability while meeting and maintaining quality and our investments with EOS mean we can deliver that to our customers.”

VBN Components Celebrating 10 Years in Business

Swedish materials development company VBN Components AB was founded in the midst of the 2008 financial crisis, and has come a long way since then. The award-winning company works to continuously develop new and better materials, including its corrosion and wear resistant Vibenite 350 for the plastics industry and Vibenite 290, the “World’s Hardest Steel.”

Martin Nilsson, CEO and one of the founders of VBN Components, said, “After our first patent, describing the process of making extremely clean and low-oxygen-rate materials, we realised that we were on to something big.”

This year, VBN Components is celebrating 10 years in business, with several patents and new, hard materials under its belt. But stay tuned – the company will soon unveil the greatest news in its history, which has been described as “a revolution in material development.”

Israeli 3D Printing Startup Receives Funding

TAU Ventures team, R-L: Nimrod Cohen, Managing Partner at TAU Ventures; Shira Gal, Director of Incubator Programs; Yaara Benbenishty, Director of Marketing and Operations [Image: Eylon Yehiel]

TAU Ventures, the venture capital fund of Tel Aviv University, announced that it has led an investment round worth nearly $2 million for two Israeli startups, including Hoopo and 3D printing company Castor. Founded two years ago by Omer Blaier and Elad Schiller, Castor combines 3D printing with artificial intelligence for its high-tech customers, which enables the companies to lower costs by using advanced technology. Castor’s technology automatically analyzes and determines the cost-effectiveness and feasibility of using 3D printing in the manufacturing process.

The startup will be receiving about $400,000 in combined funding from Stanley Black & Decker, the Techstars Accelerator, British businessman Jeremy Coller, and TAU Ventures, which is the first and only academic-based venture capital fund in Israel.

3D Printing Flexible Electronic Circuits

Researchers from a knowledge-based company in Iran have recently developed 3D printers that can fabricate flexible electronic circuits, which could be used in the future as wearables for clothing, pressure sensors, or industrial talc for cars.

The unnamed company’s project manager, Ali Gharekhani, told Mehr News that these 3D printers only take a few seconds to 3D print the flexible electronic circuits, and that foreign versions of this system are “very expensive.” Gharekhani also said that in light of this new development, his company has already received some proposals for Turkey, and “intends to reach an agreement with the Turkish side on production of clothes by 3D printers” before its rivals in Germany, Canada, and Korea.

3D Printed Replica of Chinese Grotto

Yungang Grottoes are a cradle of Buddhist art, playing host to more than 51,000 sculptures. [Image: Zhang Xingjian, China Daily]

There are over 59,000 statues carved in 45 different caves in the 1,500-year-old Yungang Grottoes, which was named a UNESCO World Heritage site in 2001. This week, a full-size, 3D printed replica of one of the grottoes passed experts’ tests. The Yungang Grottoes Research Institute in northern China’s Shanxi province, a Shenzhen company, and Zhejiang University launched the project, which is based on original cave No 12, also called the “Cave of Music.” The 3D printed replica is 15 meters long, 11 meters wide, and 9 meters high, weighs less than 5 metric tons, and is claimed by the institute to be the world’s largest 3D printed movable grotto. High precision 3D data was collected to print the replica out of resin, which took about six months, and it can be divided in parts and pieced together within a week.

“We plan to color it with mineral pigments before the end of this year,” said Zhang Zhuo, head of the institute. “In this way, the replica will maintain its original size, texture and color.”

In the future, the 3D printed grotto replica will be added to exhibition tours with the institute’s other cultural relics.

3D Printed Golf Clubs on the Golf Channel

Tonight, at 9 pm EDT, EOS will be featured, together with Wilson Golf, on the NBC Golf Channel show Driver Vs. Driver. The seven-episode series follows aspiring designers of golf equipment as they compete against each other for the chance to win $500,000. In addition to the money, the winner will also have the opportunity to have their driver design sold, under the Wilson Staff name, at retail stores.

The show gives viewers a behind the scenes look as advancing teams work with engineers at the company’s innovation hub, Wilson LABS, to evaluate, refine, and test out their concepts. Tonight is the third episode, and showcases several designers’ use of 3D printing to make the best golf driver club. Wilson is among a few other companies, including Krone Golf, Ping, Callaway Golf Company, and Cobra Puma Golf, that is using 3D printing to produce golf clubs and other equipment.

Discuss these stories and other 3D printing topics at 3DPrintBoard.com or share your thoughts below. 

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3D Printing News Briefs: October 10, 2018

It’s business news as usual to kick things off in today’s 3D Printing News Briefs, and then we’re moving on to a little medical and metal 3D printing news, followed by a 3D printing experiment and a superhero-sized 3D printed statue. The LEHVOSS Group is expanding the production capacities for its LUVOCOM material, DyeMansion has announced that its new RAL colors are now available, and the Million Waves Project receives a large grant from Shell Oil. A medical technology company is using HP’s Multi Jet Fusion to 3D print dental aligners, a YouTube video shows the depowdering process for a metal 3D printed turbine, and an experiment shows if it’s possible to use a DLP 3D printer for PCB etching. Finally, WhiteClouds designed and 3D printed a huge statue of She-Ra for a special event.

LEHVOSS Group Expanding LUVOCOM Production Capacity

Not long ago, the LEHVOSS Group, which operates under the management of parent company Lehmann&Voss&Co., revealed that that it would be showcasing its high-performance, thermoplastic LUVOCOM 3F 3D printing compounds at upcoming trade shows. Now, in order to keep meeting the ever increasing demand for these materials, the company has taken important steps, such as constructing a new laboratory and innovation center in Hamburg and commissioning an additional compounding line, to expand the worldwide production capacities for LUVOCOM.

“At the same time, these investments are just another consistent step within the framework of our long-term growth strategy,” said Dr. Thomas Oehmichen, a shareholder of Lehmann&Voss&Co. with personal liability. “Additional extensive investments in the expansion of our plastics business are currently the subject of detailed planning and are set to follow shortly.”

DyeMansion’s New RAL Colors Available

While attending the TCT Show in Birmingham recently, DyeMansion launched three machines that work together to depowder, surface treat, and dye 3D printed parts. The DM60 is the fully automated dyeing part of the system, and the company added a brand new palette of 170 standard RAL colors for PA2200 to its portfolio to let people expand the color range of the system significantly.

DyeMansion has now announced that its new RAL colors for the PolyShot Surfacing (PSS) finish are now available for DM60 color cartridges, and can be ordered via the DyeMansion On-Demand Service. To check if your favorite colors are available, type in the RAL color code on the website. To learn more about the RAL palette and the Print-to-Product workflow, visit DyeMansion’s booth 3.1-G61 at formnext in Germany next month.

Shell Oil Gives Million Waves Project a $5,000 Grant

About 40 million people in the developing world don’t have access to the prosthetic limbs they desperately need, while an estimated 28 billion pounds of plastic trash is dumped into our oceans each year. 501c(3) non-profit organization the Million Waves Project is working to fix both of these problems by using recycled ocean plastic to make inexpensive, 3D printed prosthetic limbs for children. The organization is pleased to announce that it will be now be able to make even more 3D printed prosthetics for kids thanks to a $5,000 grant that Shell Oil is providing.

“We are so excited to partner with this incredible nonprofit that aims to help serve the millions of people in need of prosthetic limbs,” said Brenna Clairr, an external relations advisor at Shell. “Our vision at the refinery is to proudly fuel life in the Pacific Northwest for our employees, contractors and our community, and we help bring that vision to life by collaborating with organizations like a Million Waves Project.”

HP’s MJF Technology Used to 3D Print Dental Aligners

Swiss medical technology company nivellmedical AG is focused on developing, manufacturing, and distributing nivellipso, a novel clear aligner system for correcting misaligned teeth. The system, a more aesthetically pleasing alternative to the conventional fixed braces, uses biocompatible, invisible plastic splints that gently move teeth to the desired position. The company is using HP’s Multi Jet Fusion technology to make its  dental aligners, which has helped improve its digital workflow.

“We are putting our focus on precision and quality work,” said Dr. Milan Stojanovic, the head of the nivellmedical board. “3D printing technology has simplified a lot of the production of aligners.

The patient’s mouth is scanned, and the scan is then sent to the laboratory, where a model is 3D printed and used to properly fit the aligners before they are shipped out to the patient. Learn more about the process in the video below:

Depowdering a Metal 3D Print Build

Have you ever seen those videos on the internet that are supposed to be ‘oddly satisfying’ and stress-reliving in a way you can’t quite figure out? The ones that show a ton of matches lighting up in a pattern, or someone slowly squishing their hands in a beautifully decorated pile of slime or some other weird material? Nick Drobchenko, a YouTube user from Saint Petersburg, has now introduced the 3D printing equivalent with his video of using a brush to slowly remove the metal powder from a 3D printed part.

“Hollow stainless steel turbine, 90mm diameter. Printing time 4.5 hours,” Drobchenko wrote in the video description. “Printing cost $140, about 30 cm3.”

If the video below does not soothe and/or satisfy you, then I’m not sure what will:

Can a DLP 3D Printer Be Used for PCB Etching?

A maker named Andrei who goes by Electronoobs online recently acquired a couple of DLP 3D printers. After reviewing them, he wanted to see if it was possible to use DLP 3D printers to build the mask for PCB etching. So he created an experiment – with surprising results – and published a video about his experience on YouTube.

“I would only use the UV light of the printer to create the mask for the PCB, and then etch it using acid for copper PCBs just as always,” he explained in the video.

In addition to the DLP 3D printers, other things required for this experiment included copper boards, dry photosensitive film, sodium carbonate, latex gloves, and an iron. Spoiler alert – Electronoobs succeeds in using DLP technology to 3D print a mask for PCB etching. To see the rest of his impressive experiment, check out the video below:

3D Printed She-Ra Statue for New York Comic-Con

[Image: Darinda Ropelato via Facebook]

Utah-based 3D printing services company Whiteclouds has plenty of experience with the technology in many applications, from aerospace, gaming, and mapping to medical for both animals and humans. But recently, the employees got to participate in a project that was, as Whiteclouds CEO Jerry Ropelato told 3DPrint.com, “one of the coolest (and funnest) 3D prints” they’ve ever worked on. The company was asked to design and 3D print the statue of She-Ra at the recent New York Comic-Con.

“It was our tallest at 11 foot tall,” Ropelato told us.

DreamWorks and Netflix are bringing She-Ra and the Princesses of Power back to life with an animated series that will begin next month. According to a Facebook post by Ropelato, Whiteclouds enjoyed every bit of the Comic-Con project, which included designing and 3D printing She-Ra’s throne and sword. The team used touch-sensitivity electronics for activating the sound and lighting for the statue, and were proud to have a small part in the She-Ra reboot.

Discuss these stories and other 3D printing topics at 3DPrintBoard.com or share your thoughts in the comments below. 

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3D Printing News Briefs: August 24, 2018

We’re sharing some business news in today’s 3D Printing News Briefs, followed by some interesting research and a cool 3D printed statue. Meld was listed as a finalist in the R&D 100 Awards, and Renishaw has introduced 3D printed versions to its styli range, while there’s an ongoing Digital Construction Grant competition happening in the UK. A researcher from Seoul Tech published a paper about in situ hydrogel in the field of click chemistry, while researchers in Canada focused on the Al10SiMg alloy for their study. Finally, an Arcam technician tested the Q20plus EBM 3D printer by making a unique titanium statue of Thomas Edison.

Meld is R&D 100 Awards Finalist

The global R&D 100 Awards have gone on for 56 years, highlighting the top 100 innovations each year in categories including Process/Prototyping, IT/Electrical, Mechanical Devices/Materials, Analytical/Test, and Software/Services, in addition to Special Recognition Awards for things like Green Tech and Market Disruptor Products. This year, over 50 judges from various industries selected finalists for the awards, one of which is MELD Manufacturing, an already award-winning company with a unique, patented no-melt process for altering, coating, joining, repairing, and 3D printing metal.

“Our mission with MELD is to revolutionize manufacturing and enable the design and manufacture of products not previously possible. MELD is a whole new category of additive manufacturing,” said MELD Manufacturing Corporation CEO Nanci Hardwick. “For example, we’re able to work with unweldable materials, operate our equipment in open-atmosphere, produce much larger parts that other additive processes, and avoid the many issues associated with melt-based technologies.”

The winners will be announced during a ceremony at the Waldorf Astoria in Orlando on November 16th.

Renishaw Introduces 3D Printed Styli

This month, Renishaw introduced a 3D printed stylus version to its already wide range of available styli. The company uses its metal powder bed fusion technology to provide customers with complex, turnkey styli solutions in-house, with the ability to access part features that other styli can’t reach. 3D printing helps to decrease the lead time for custom styli, and can manufacture strong but lightweight titanium styli with complex structures and shapes. Female titanium threads (M2/M3/M4/M5) can be added to fit any additional stylus from Renishaw’s range, and adding a curved 3D printed stylus to its REVO 5-axis inspection system provides flexibility when accessing a component’s critical features. Components with larger features need a larger stylus tip, which Renishaw can now provide in a 3D printed version.

“For precision metrology, there is no substitute for touching the critical features of a component to gather precise surface data,” Renishaw wrote. “Complex parts often demand custom styli to inspect difficult-to-access features. AM styli can access features of parts that other styli cannot reach, providing a flexible, high-performance solution to complex inspection challenges.”

Digital Construction Grant Competition

Recently, a competition opened up in the UK for organizations in need of funding to help increase productivity, performance, and quality in the construction sector. As part of UK Research and Innovation, the organization Innovate UK – a fan of 3D printing – will invest up to £12.5 million on innovative projects meant to help improve and transform construction in the UK. Projects must be led by a for-profit business in the UK, begin this December and end up December of 2020, and address the objectives of the Industrial Strategy Challenge Fund on Transforming Construction. The competition is looking specifically for projects that can improve the construction lifecycle’s three main stages:

  • Designing and managing buildings through digitally-enabled performance management
  • Constructing quality buildings using a manufacturing approach
  • Powering buildings with active energy components and improving build quality

Projects that demonstrate scalable solutions and cross-sector collaboration will be prioritized, and results should lead to a more streamlined process that decreases delays, saves on costs, and improves outputs, productivity, and collaborations. The competition closes at noon on Wednesday, September 19. You can find more information here.

Click Bioprinting Research

Researcher Janarthanan Gopinathan with the Seoul University of Science Technology (Seoul Tech) published a study about click chemistry, which can be used to create multifunctional hydrogel biomaterials for bioprinting ink and tissue engineering applications. These materials can form 3D printable hydrogels that are able to retain live cells, even under a swollen state, without losing their mechanical integrity. In the paper, titled “Click Chemistry-Based Injectable Hydrogels and Bioprinting Inks for Tissue Engineering Applications,” Gopinathan says that regenerative medicine and tissue engineering applications need biomaterials that can be quickly and easily reproduced, are able to generate complex 3D structures that mimic native tissue, and be biodegradable and biocompatible.

“In this review, we present the recent developments of in situ hydrogel in the field of click chemistry reported for the tissue engineering and 3D bioinks applications, by mainly covering the diverse types of click chemistry methods such as Diels–Alder reaction, strain-promoted azide-alkyne cycloaddition reactions, thiol-ene reactions, oxime reactions and other interrelated reactions, excluding enzyme-based reactions,” the paper states.

“Interestingly, the emergence of click chemistry reactions in bioink synthesis for 3D bioprinting have shown the massive potential of these reaction methods in creating 3D tissue constructs. However, the limitations and challenges involved in the click chemistry reactions should be analyzed and bettered to be applied to tissue engineering and 3D bioinks. The future scope of these materials is promising, including their applications in in situ 3D bioprinting for tissue or organ regeneration.”

Analysis of Solidification Patterns and Microstructural Developments for Al10SiMg Alloy

a) Secondary SEM surface shot of Al10SiMg powder starting stock, (b) optical micrograph and (c) high-magnification secondary SEM image of the cross-sectional view of the internal microstructure with the corresponding inset shown in (ci); (d) the printed sample and schematic representation of scanning strategy; The bi-directional scan vectors in Layer n+1 are rotated by 67° counter clockwise with respect to those at Layer n.

A group of researchers from Queen’s University and McGill University, both in Canada, explain the complex solidification pattern that occurs during laser powder bed fusion 3D printing of the Al10SiMg alloy in a new paper, titled “Solidification pattern, microstructure and texture development in Laser Powder Bed Fusion (LPBF) of Al10SiMg alloy.”

The paper also characterizes the evolution of the α-Al cellular network, grain structure and texture development, and brought to light many interesting facts, including that the grains’ orientation will align with that of the α-Al cells.

The abstract reads, “A comprehensive analysis of solidification patterns and microstructural development is presented for an Al10SiMg sample produced by Laser Powder Bed Fusion (LPBF). Utilizing a novel scanning strategy that involves counter-clockwise rotation of the scan vector by 67° upon completion of each layer, a relatively randomized cusp-like pattern of protruding/overlapping scan tracks has been produced along the build direction. We show that such a distribution of scan tracks, as well as enhancing densification during LPBF, reduces the overall crystallographic texture in the sample, as opposed to those normally achieved by commonly-used bidirectional or island-based scanning regimes with 90° rotation. It is shown that, under directional solidification conditions present in LPBF, the grain structure is strictly columnar throughout the sample and that the grains’ orientation aligns well with that of the α-Al cells. The size evolution of cells and grains within the melt pools, however, is shown to follow opposite patterns. The cells’/grains’ size distribution and texture in the sample are explained via use of analytical models of cellular solidification as well as the overall heat flow direction and local solidification conditions in relation to the LPBF processing conditions. Such a knowledge of the mechanisms upon which microstructural features evolve throughout a complex solidification process is critical for process optimization and control of mechanical properties in LPBF.”

Co-authors include Hong Qin, Vahid Fallah, Qingshan Dong, Mathieu Brochu, Mark R. Daymond, and Mark Gallerneault.

3D Printed Titanium Thomas Edison Statue

Thomas Edison statue, stacked and time lapse build

Oskar Zielinski, a research and development technician at Arcam EBM, a GE Additive company, is responsible for maintaining, repairing, and modifying the company’s electron beam melting (EBM) 3D printers. Zielinski decided that he wanted to test out the Arcam EBM Q20plus 3D printer, but not with just any old benchmark test. Instead, he decided to create and 3D print a titanium (Ti64) statue of Thomas Edison, the founder of GE. He created 25 pieces and different free-floating net structures inside each of the layers, in order to test out the 3D printer’s capabilities. All 4,300 of the statue’s 90-micron layers were 3D printed in one build over a total of 90 hours, with just minimal support between the slices’ outer skins.

The statue stands 387 mm tall, and its interior net structures show off the kind of complicated filigree work that EBM 3D printing is capable of producing. In addition, Zielinski also captured a time lapse, using an Arcam LayerQam, from inside the 3D printer of the statue being printed.

“I am really happy with the result; this final piece is huge,” Zielinski said. “I keep wondering though what Thomas Edison would have thought if someone would have told him during the 19th century about the technology that exists today.”

Discuss these stories and other 3D printing topics at 3DPrintBoard.com or share your thoughts below.