Cultural managements

3D Printing News Briefs, May 26, 2022: Filaments and Ink, Cultural Artifacts, and More. –

In 3D Printing News Briefs today, we’ll share some materials news, followed by a new product line focused on 3D printing, and finally cultural heritage. First, Braskem launched three new durable 3D printing filaments, and Mapei Corp. branded and launched cement-based 3D printing ink with partner Black Buffalo. Nippon Gases offers a new line of AM-focused gas products. Finally, 3D printing is being used to help return cultural artifacts to a tribe in southern Alaska.

Braskem’s first range of sustainable 3D printing filaments

Recycled polyolefin filament with carbon fiber

Biopolymer producer Braskem has launched a range of new sustainable 3D printing filament products, all three showcased at last week’s RAPID+ TCT in Detroit. According to Jason Vagnozzi, the company’s Global Additive Manufacturing Business Manager, these new filaments confirm Braskem’s “commitment to a more circular and carbon-neutral future.” All three are available in 1.75mm and 2.85mm diameters. The first of these three new materials is FL600EVA-BIO, a bio-based ethylene-vinyl acetate (EVA) filament derived from raw sugar cane that can be used to print flexible, lightweight parts for consumer applications. , packaging and industrial. It features 94 Shore A hardness, low density and low warpage, excellent surface finish and bed adhesion, and high dimensional stability.

FL600R is an eco-friendly, recycled polyolefin filament that is sourced primarily from recycled bottle caps, but features the same low density and high chemical, impact and water resistance offered by FL600R. virgin materials based on polyethylene and polypropylene. The lightweight recycled PE/PP blend exhibits high ductility and dimensional stability, low warpage and excellent surface finish, and is compatible with Creality, Ultimaker and other similar AM equipment. It also offers excellent bed adhesion and can be used for rapid prototyping and mass customization, in addition to automotive, packaging, consumer, and industrial applications. Finally, the technical-grade FL605R-CF polymer, also made primarily from recycled bottle caps, is an eco-friendly PE/PP blend that provides extra strength and durability through recycled carbon fiber. With its high strength and stiffness, this filament has high dimensional stability and surface finish, low density and warpage, as well as high chemical resistance, and is suitable for the design of rigid and lightweight parts.

Mapei & Black Buffalo launch cement-based 3D printing ink/mortar

3D construction company Black Buffalo 3D and admixture supplier Mapei Corp. recently formed a strategic research, development and manufacturing partnership and as a result jointly launched a cement-based ink/mortar for construction 3D printing. Part of Mapei’s Planitop product line, the new Planitop 3D meets the acceptance criteria of ICC-ES AC509 – 3D Automated Construction Technology for 3D Concrete Walls, and its fresh and cured properties have been tested by printers Black Buffalo’s Nexcon, who fabricated demonstration structures during 13-Hour Cycles. The hardware launch comes shortly after a major project was announced, as additive construction company Alquist 3D will use a Nexcon printer and new Planitop 3D ink to create a 200-unit housing community in Virginia.

“[Our] The team recognized the need for material standardization to drive the next phase of growth in the 3D construction industry. Mapei was able to improve the formula developed by our team and take it to the next level, outperforming all products on the market. [Planitop 3D] makes printing homes, buildings and infrastructure financially feasible at almost any level,” said Michael Woods, CEO of Black Buffalo 3D’s parent company, Big Sun Holdings.

Nippon Gases offers a range of AM-focused gas products

Nippon Gases’ 3DPro product offering

Nippon Gases, a leader in industrial and medical gases, has introduced a new range of gases and equipment for the AM industry through its 3DPro product family. This new line is of crucial importance for the production of parts in large batches, since companies can lose a lot of money if an entire construction is ruined due to powder impurities. The new 3DPro gas line includes nitrogen, which is often used in PBF processes; argon; helium for EBM printing; and the Sanarc H3 blend, which is required for binder jetting and bonded metal processes in post-print sintering. The 3DPro Dry Gas Tube provides three-layer protection – combining heat resistance, durability and toughness – against airborne impurities, while 3DPro Link helps with gas control management. The 3DPro purifier consists of absorbent cartridges that retain pollutants and are installed in the gas inlet of the machine to avoid contamination in the distribution line. The 3DPro cabinet helps protect and preserve metal powder from atmospheric contamination by removing moisture and oxygen, and the 3DPro Recirc for PBF printing is a recirculating purification system that removes laser-generated impurities .

“3D printing is a multi-layered process and if during this process the surface oxidizes, it remains attached to the product,” explained Nippon Gases in its new dedicated 3DPro website. “It is precisely for this reason that these two pollutants must be reduced as much as possible because there is no chance of repairing the damage, which results in a loss of product.”

3D printed replicas of culturally sensitive tribal artifacts

LR: A 3D printed model of a Tlingit frog clan helmet created by the Center for Advanced Structures and Composites at the University of Maine sits next to the real Tlingit helmet. (Courtesy of the University of Maine)

Finally, a team of artists and engineers from the University of Maine, along with the Hudson Museum on campus, create and refine a 3D-printed display replica of a cultural artifact, specifically the Clan Helmet. Tlingit Frog, so the original can be returned. to the Tlingit tribe in southern Alaska. The tribe’s central council filed a request to repatriate the helmet and seven other donated items, and museum director Gretchen Faulkner worked with the Tlingit to get approval to 3D print the replica. Alex Cole and Jonathan Roy, research engineers at UMaine’s Advanced Structures and Composites Center, have previous experience making cultural artifacts and scanned the original helmet to print a replica, complete with “all its little flaws and details”. Later this summer, the Hudson Museum will host a temporary exhibit that will show how the 3D printed replica was created and, after returning the original helmet, will hopefully work to create replicas of the other Tlingit artifacts.

“We work closely with Native American communities, and these objects are an integral part of their cultural practices. So it’s about reconnecting these communities with their cultural traditions and the cultural objects made by their ancestors,” Faulkner explained.

“The return of these objects has brought healing to their communities and reconnected them to their past.”