In the opinion of Lead author and Ph.D. candidate from RMIT University’s School of Engineering, Carmelo Todaro, “the promising results could inspire new forms of additive manufacturing.
If you look at the microscopic structure of 3-D printed alloys, they’re often made up of large and elongated crystals.
This can make them less acceptable for engineering applications due to their lower mechanical performance and increased tendency to crack during printing.
But the microscopic structure of the alloys we applied ultrasound to during printing looked markedly different: the alloy crystals were very fine and fully equiaxed, meaning they had formed equally in all directions throughout the entire printed metal part.”
WPI receives $25M ARL award for cold spray 3D printing process.
Damaged parts on military vehicles can lead to lengthy and costly service delays, but a novel cold spray 3D printing process developed at Worcester Polytechnic Institute promises to provide rapid repair and reduced downtime.
According to Danielle Cote, assistant professor of materials science and engineering and director of WPI’s Center for Materials Processing Data, “The Army is interested in cold spray 3D printing as a repair technique. Danielle Cote is the principal investigator for the ARL project. It’s cheaper to repair a part than to replace it, and you get the equipment back in service faster. The Army’s primary interest is unit readiness. If you’re on a mission and need to move quickly to a safer place, and a critical part on your vehicle breaks, you’re stuck unless you can repair it quickly. That’s where cold spray comes in.”
Graphene is strong, light, thin and flexible. It is the thinnest substance capable of conducting electricity, is an efficient thermal conductor and is optically transparent. Graphene is also more resistant to tearing than steel and is almost impermeable.
For 3D printing a wonder material for the future, graphene.
According to GrapheneCa Head of Business Development David Robles,” Proactive Investors to discuss the technology company that is integrating graphene into the real world using their own environmentally friendly production process.
Robles telling Proactive about the company’s revenue streams and when they are expecting to be profitable.”
According to Hodge,” Adding graphene to plastic composites can improve the tensile strength and stiffness of packaging. Graphene won’t make the material indestructible but it may be possible to reduce packaging size while maintaining the same properties. This has obvious advantages for transporting fragile goods and may also contribute to recycling. Today, recycling plastics degrades the quality of the plastic – it can be recycled an average of three times, but adding graphene to recycled plastics can improve its strength so that it can be recycled many times more. Because they are printed, [the capacitive touch sensors] can be any size or shape and printed in volume.”
According to Chris Jones, technical manager at Novalia, a partner in the EU’s Graphene Flagship, “Our mission statement is to make technology disappear into everyday items.
The ink is supplied by Researchers at the University of Cambridge, University of Manchester and produced by micro fluidization.”
According to Francesca Rosella, co-founder of CuteCircuit, “A dress was designed to illustrate the material’s strength, transparency, and conductivity. The shape and decoration of the dress represent the design of a graphene crystal. We examined graphene under a microscope to see the hexagonal structure and enlarged it to help people understand graphene’s molecular structure.”
According to the TechRadar, “Mobile warming the graphene jacket can also conduct electricity, but creator Vollebak has decided to dampen down this ability to protect wearers. Prototypes of the jacket were so conductive that the wearer could hold a battery in one hand and a light bulb in the other, and have the bulb light up, but Vollebak decided that, although interesting, it was best to play it safe and make the material a little more resistant.”
According to Researchers at Osaka Universities co-author Kazuhiko Matsumoto,” Our biosensor enables highly sensitive and quantitative detection of bacteria that cause stomach ulcers and stomach cancer by limiting its reaction in a well-defined microvolume. They have invented a new biosensor using graphene, which is a material that consists of a one-atom-thick layer of carbon, to detect bacteria like those that attack the stomach lining and that have been linked to stomach cancer. When the bacteria interact with the biosensor, chemical reactions are triggered which are detected by graphene. To enable detection of the chemical reaction products, the researchers used microfluidics to contain the bacteria in tiny droplets that are close to the surface of the sensor.”
A Swedish engineering group has 3D printed the world’s first composite diamond. According to Mikael Schuisky, Head of R&D and Operations at Sandvik Additive Manufacturing, and RAPID + TCT show in Detroit, “Diamond is harder than anything else in nature. It is a key component in a large range of wear resistant tools in the industry, but since it’s so hard and complicated to machine it is almost impossible to form complex shapes. To solve this, Sandvik has developed a proprietary process making it possible to 3D print diamond composite, meaning that this super-hard material now can be printed in highly complex shapes – and can thereby revolutionize the way industries use the hardest natural material on the planet. We now have the ability to create strong diamond composites in very complex shapes through additive manufacturing, which fundamentally will change the way industries will be able to use this material. As of now, the only limit to how this super-hard material can be shaped and used is down to the designer’s imagination. According to Susanne Norgren, Adjunct Professor in Applied Materials Science at Uppsala University, “Sandvik’s 3D printed diamond composite is a true innovation. It means that we can begin to use diamond in applications and shapes never conceived possible before. Just imagine what it could do to industries, when it is possible to print anything, in any shape – in the diamond.”
According to the professor Woo Soo Kim in the School of Mechatronic Systems Engineering, “Our eco-friendly 3D printed cellulose sensors can wirelessly transmit data during their life, and then can be disposed of without concern of environmental contamination. This development will help to advance green electronics. For example, the waste from printed circuit boards is a hazardous source of contamination to the environment. If we are able to change the plastics in PCB to cellulose composite materials, recycling of metal components on the board could be collected in a much easier way.”
According to John Hart and Sebastian Pattinson, a former postdoc in mechanical engineering who is now a lecturer at the University of Cambridge in the U.K., “demonstrated a technique using the world’s most abundant natural polymer-cellulose. at MIT,” says early education on 3-D printing is the key to helping the technology expand as an industry. They are very much enjoyed creating and teaching the course and they are proud of what the students did, and what it means about the future potential of additive manufacturing.
Cellulose offers many advantages over current plastics-based feedstocks: It’s inexpensive, renewable, biodegradable, mechanically robust, and chemically versatile. In addition, it’s widely used in pharmaceuticals, packaging, clothing, and a variety of other products, many of which could be customized using 3-D printing”.
For so many decades we couldn’t find the identification of colony collapse disorder, a phenomenon marked by widespread loss of honey bee colonies, researchers are continuously working to solve the ecologically complex problem of how to mitigate ongoing losses of honey bees and other pollinating species. We need to track specific impacts on bee health. It could be carefully controlled and kept pesticide free.
3D printed honeycomb is based on food grade material.
According to Researchers at the Carl R. Woese Institute for Genomic Biology at the University of Illinois and J Group Robotics,” used specially developed 3D-printed plastic honeycombs that mimic the hive environment, in order to monitor queen egg-laying behaviors. They develop a complete Automated Bee Hive to extract honey in the purest form. The entire beehive is nature-friendly as well as using the latest Robotics, 3D Printing & Production friendly mechanism. The Robotic Bee Hive shall extract the purest form of Honey without Killing or Disturbing the Honey Bees. “This compact Robotics Bee Hive shall be installed at every village driving the Women Empowerment and supplying the Purest form of Kinds of honey to the FMCG’s”
Graduate students learned how to 3-D print ice cream in an additive manufacturing course at MIT.
According to John Hart, the Mitsui Career Development Associate Professor in Contemporary Technology and Mechanical Engineering at MIT,” says early education on 3-D printing is the key to helping the technology expand as an industry. I very much enjoyed creating and teaching the course and I’m proud of what the students did, and what it means about the future potential of additive manufacturing. The students’ final projects have included printers that they built specially to print molten glass and even soft-serve ice cream”.
According to Professor Jay Sanjayan, the Swinburne University of Technology,” Each block of this freestanding structure is printed using a special cement composite. Rather than factory conditions, we have to print out in the weather.
Instead of a few kilos of materials, we have to handle tonnes. And although we don’t need the same accuracy as the aerospace industry, we have to trade that for the low cost.”
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