3D Printing News Briefs, January 22, 2022: Research, Business and More – 3DPrint.com

We start with a little research in today’s news on 3D printing, how embedded mica wafers can improve the properties of PEKK, and then we get down to business, with a new framework at Markforged and the first shipment of parcels from the new Lithoz site. Vallourec has 3D printed two safety-critical parts for an oil and gas company. Finally, an emerging shoe brand is using 3D printing for their unique shoe designs. Read on for the details!

3D printing by PEKK extrusion with integrated mica

Arkema PEKK

A class of semi-crystalline thermoplastics called polyaryletherketones (PAEKs) exhibit chemical resistance, strength, high temperature tolerance, and high glass transition temperatures, and can be used as a metal substitute in multiple industries. Materials in this class, such as polyetheretherketone (PEEK) and polyetherketoneketone (PEKK), are often used as AM raw materials, and PEKK in particular has rigid ketone groups that lower its melting temperature and increase its glass transition temperature. , which can reduce warping and make it easier to process in extrusion-based 3D printers. However, PEKK is not without its challenges, and researchers at the Pacific Northwest National Laboratory (PNNL) published a to study on the way to improve the properties of PEKK by incorporating it into mica wafers as a filler to improve thermal conductivity and mechanical properties. Sheet-like phyllosilicate materials, micas have high aspect ratios, good electrical and mechanical properties, are safe when embedded in matrices and low cost, and the team predicted that the loads of mica would improve the properties of extrusion-based PEKK 3D printing, without harming the chemical reactivity or the stability of the material in extreme environments.

“Here we report the integration of three grades of mica wafers into PEKK at 10% and 30% mass loadings to generate a range of filament feedstocks that have been used to print objects with a simple FFF machine. The effects of mica coating chemistry on PEKK compatibility and resulting properties are described,” the researchers wrote.

“The printed composites were effectively cold crystallized after printing in the same way as unfilled PEKK, resulting in increased dimensional stability. All micas, when used as fillers in low and high relative PEKK crystallinities, increased the tensile modulus of parts in correlation with filler.

Markforged hires a marketing director

Let’s get down to business, like Brandforged at completed its management team with the appointment of André Hally as Chief Marketing Officer (CMO), effective January 4. Hally has 25 years of technology marketing experience, most recently as Chief Marketing Officer of digital asset management company Bynder, and in this newly created role he will help drive brand awareness and accelerate growth of Digital Forge, as well as overseeing the company’s marketing operations. from strategic positioning to demand generation. Reporting directly to the company’s CEO and President, Shai Terem, Hally will work from Markforged’s global headquarters in Watertown, working to align and drive marketing efforts for the company’s growth plans and goals.

“The most exciting years of my early career combined hardware and software technology breakthroughs to accelerate 3D design and prototyping. Today, the advance of 3D printing into end-use parts promises to transform manufacturing across all industries, with benefits not only for engineers and businesses, but also for the environment and society. I am honored and excited to join the Markforged team to help realize this important vision,” Hally said.

Lithoz ships the first delivery from its new site

Second Production Facility Combines Significantly Increased Capacity, Efficient Warehousing and New Level of Quality Management

Leader in ceramic 3D printing Lithoz GmbH, a spin-off from You come, opened its second production site in Vienna, Austria this summer, which is the fourth site in the world after its American and Chinese bases and its headquarters in Vienna. Now the company has announced that it has gone into production in the new XL hub and has recently shipped the first customer shipment from there too. This new central warehouse has more storage capacity for raw materials and scalable production, which helps to offer faster order processing for customers, and quality control is top-notch thanks to a monitored production and a quality assurance laboratory. All of these features combine to ensure that the new site can offer more efficient warehousing and logistics, which will enable better customer support worldwide.

“During the planning and implementation of this new production site, we focused on sustainability, scalability and reliability,” explained project manager Dr. Daniel Bomze. “We are ready and extremely well prepared to meet the growing demand from our customers.”

Vallourec uses WAAM 3D printing to manufacture lifting caps

French multinational manufacturing company Vallourec used Wire Arc Additive Manufacturing (WAAM) for make two lifting plugs for an oil and gas company Weatherford. These plugs, usually made from heavy wall forged bars, are safety critical components that act as the junction between the pipes and the rig lift, and are used on the surface of the oil rig so that operators can safely move and handle long and heavy tubes. some products. They are typically time-consuming to manufacture, as they require non-standard material with unique mechanical properties, in addition to custom dimensions to ensure all components are compatible, as lift plugs connect to existing equipment. Weatherford needed a VAM® TTR HW Riser Lifting Plug capable of 100T for a customer off the coast of Australia, and Vallourec turned to its WAAM robot in Singapore, which was only a six-hour flight from Weatherford customer. This technology, which combines direct deposition 3D printing with hot wire laser welding or automated inert gas (MIG) welding, was faster, more affordable and could handle the non-standard diameters needed, as well as the outside diameter (OD) of the lift. plugs – delivered in less than two months instead of three or four – increased by 15%.

“Thanks to WAAM, we were able to manufacture a lifting plug in half the time of the traditional process with the same mechanical properties and meeting the customer’s specific outer diameter requirements without a minimum order quantity,” said Jinwei Li, Asia-Pacific Sales Director at Vallourec. . “This would not have been possible with traditional processes because we would have been limited to the outer diameter of the solid bar available or we would have had to purchase a new solid bar with a larger outer diameter, further extending the delivery time.”

Cutting-edge 3D printed SCRY lab shuttle shoes

Finally, an emerging footwear brand and laboratory based in Beijing, called SCRY laboratory, is run by a 22-year-old Zixiong Wei, who likes to use 3D printing because it allows more experimentation in shoemaking, even if a prototype doesn’t work. Wei spoke with HYPEBEAST about his digital embryo philosophy, the concept design of his signature SCRY Lab Shuttle silhouette, and just a bit about 3D printing, although I wish he had said more. He explained that he first became interested in sneakers in middle school, learning about the history and design of each brand, and how he was first inspired by Nike’s Wind series for the concept behind it. SCRY brand. About 70% of the SCRY shuttle’s drainage grooves have been designed so that they can be 3D printed in their entirety, and Wei said product development takes about two weeks, although launching a pair of shoes involves many marketing and sales plans, so the cycle for that is about two months.

“Apart from a big company, it’s a big challenge and a big investment to make a new pair of shoes. Still, I was determined to lower the threshold for designing and manufacturing shoes and created the SCRY brand. SCRY explored different future possibilities, rather than pursuing lighter, faster and more resilient forward directions in the traditional sense. Sometimes it’s not the internal things that disrupt an industry,” Wei said.

“The concept of “Digital Embryo” is a framework technology that aims to go through the entire process of designing and manufacturing a pair of shoes with a completely digital process, while reaching the mass production capacity of the 3D printing, thus ensuring the scalability of virtual shoes.It can also realize a seamless online and offline business model.

“For example, I can produce many virtual simulation concept shoes and let consumers choose and order shoes, and then I will print them. Additionally, the “digital embryo” as the underlying framework can enable true modular customization. A shoe can have hundreds of combinations.