Sound Waves Let Researchers Build Stuff With the Force - A new acoustic levitation device is even capable of picking up and placing drops of glue [Gizmodo, August 2022]

Title:

Sound Waves Let Researchers Build Stuff With the Force

 

Author:

Andrew Liszewski

 

Published:

GIZMODO, 12 August 2022

https://gizmodo.com/siggraph-2022-sound-waves-building-levitation-acoustic-1849405023

 

From the articles:

What does the future of construction look like? Autonomous machines buzzing around a building site? Giant 3D printers extruding walls and floors? Looking forward even farther, researchers at the Public University of Navarre in Spain have been experimenting with using sound waves to make building materials simply float into position without any physical interaction required.

Note from blog owner:

A conference paper on this topic titled LeviPrint: Contactless Fabrication using Full Acoustic Trapping of Elongated Parts is available. 

Cornell University-led research - Researchers 3-D print biomedical parts with supersonic speed

Title:

Researchers 3-D print biomedical parts with supersonic speed

 

Author:

David Nutt, Cornell University

 

Published:

Phys.org, 10 November 2020

https://phys.org/news/2020-11-d-biomedical-supersonic.html

 

From the article:

Forget glue, screws, heat or other traditional bonding methods. A Cornell University-led collaboration has developed a 3-D printing technique that creates cellular metallic materials by smashing together powder particles at supersonic speed.

 

This form of technology, known as "cold spray," results in mechanically robust, porous structures that are 40% stronger than similar materials made with conventional manufacturing processes.