3D printing techniques have quickly become some of the most widely used tools to rapidly design and build new components. A team of engineers at the University of Bristol has developed a new type of 3D printing that can print composite materials, which are used in many high performance products such as tennis rackets, golf clubs and aeroplanes. This technology will soon enable a much greater range of things to be 3D printed at home and at low-cost.
The study published in Smart Materials and Structures creates and demonstrates a novel method in which ultrasonic waves are used to carefully position millions of tiny reinforcement fibres as part of the 3D printing process. The fibres are formed into a microscopic reinforcement framework that gives the material strength. This microstructure is then set in place using a focused laser beam, which locally cures the epoxy resin and then prints the object.
Tom Llewellyn-Jones, a PhD student in advanced composites who developed the system, said: “We have demonstrated that our ultrasonic system can be added cheaply to an off-the-shelf 3D printer, which then turns it into a composite printer.”
In the study, a print speed of 20mm/s was achieved, which is similar to conventional additive layer techniques. The researchers have now shown the ability to assemble a plane of fibres into a reinforcement framework. The precise orientation of the fibres can be controlled by switching the ultrasonic standing wave pattern mid-print.
To achieve this the research team mounted a switchable, focused laser module on the carriage of a standard three-axis 3D printing stage, above the new ultrasonic alignment apparatus.
This approach allows the realisation of complex fibrous architectures within a 3D printed object. The versatile nature of the ultrasonic manipulation technique also enables a wide-range of particle materials, shapes and sizes to be assembled, leading to the creation of a new generation of fibrous reinforced composites that can be 3D printed.
Bruce Drinkwater, Professor of Ultrasonics in the Department of Mechanical Engineering, said: “Our work has shown the first example of 3D printing with real-time control over the distribution of an internal microstructure and it demonstrates the potential to produce rapid prototypes with complex microstructural arrangements. This orientation control gives us the ability to produce printed parts with tailored material properties, all without compromising the printing.”
Dr Richard Trask, Reader in Multifunctional Materials in the Department of Aerospace Engineering, added: “As well as offering reinforcement and improved strength, our method will be useful for a range of smart materials applications, such as printing resin-filled capsules for self-healing materials or piezoelectric particles for energy harvesting.”
Read more: It’s a 3D printer, but not as we know it
The Latest on: Ultrasonic 3D printer
via Google News
The Latest on: Ultrasonic 3D printer
- Pandemic inspires dental safety research and innovation at MUSCon March 4, 2021 at 8:56 am
Dentists, once labeled the workers who face the greatest coronavirus risk, have important new information about how to protect themselves and ...
- Adding ultrasound to water could more thoroughly disinfect veggieson March 3, 2021 at 10:55 am
Well, a new study suggests that using ultrasonic water may be the best way to go. First of all, plain ol' tap water can't necessarily dislodge all of the bacteria from leafy vegetables ...
- Ultrasonic cleaning of salad leaves could reduce food poisoning instanceson March 3, 2021 at 5:54 am
Earlier this year, researchers developed a laser-based method for printing holograms on films of dried corn syrup that could one day be used to label products.
- Spinal Imaging Market to reach US $3 Billion by 20…on March 3, 2021 at 2:50 am
Future Market Insights, in its recent spinal imaging market report predicts a growth trajectory of over 5% between 2020 and 2030. The rising global burden of spinal disorders, improving patient’s ...
- Development of a 3D printed patient-specific neonatal brain simulation model using multimodality imaging for perioperative management | Pediatric Researchon March 2, 2021 at 7:30 am
Medical-imaging-based three-dimensional (3D) printed models enable improvement in skills training, surgical planning, and decision-making. This pilot study aimed to use multimodality imaging and to ...
- Philips partners with DiA Imaging Analysis to enhance ultrasound with AI-based image quantificationon March 2, 2021 at 5:02 am
Amsterdam, the Netherlands and Be'er Sheva, Israel – Royal Philips (NYSE: PHG, AEX: PHIA), a global leader in health technology, and DiA Imaging Analysis Ltd., a leading provider of AI-powered ...
- Ultrasonic Sound Gun Precisely Aims Your Musicon February 27, 2021 at 4:00 pm
As the project name suggests, he also 3D printed a gun-shaped enclosure ... for other inspiration there is a whole list of cool ultrasonic projects from distance sensors to acoustic levitation.
- This 3D-Printed Robotic Vacuum Suckson February 27, 2021 at 4:00 pm
Once all the pieces were printed, a 3D pen was used to “weld” the sections ... The robot has four sets of ultrasonic range finders to detect walls and obstacles, though probably not in the ...
- Watch: Blind woman 'sees' the face of her unborn child thanks to 3D printingon February 26, 2021 at 12:21 am
Tatiana Guerra is expecting a son, and when she went for her ultrasound recently, she got a huge surprise. Most parents relish the opportunity to ...
- Ultrasound triggers brain's waste disposal system in Alzheimer's patientson February 24, 2021 at 4:00 pm
A new study has demonstrated how this recently discovered system might be kicked into gear via ultrasound, with the technique proving effective in stimulating its activity in patients as part of ...
via Bing News