Iranian Engineers Develop Micron-Scale 3D Printing Technology

Tuesday, July 30, 2019 - 12:59

Engineers from Sharif University of Technology have developed 3D printers that are able to print structures down to the micron scale.

According to an ISCA report, researchers of Sharif University of Technology could develop Micron Resolution 3D Printer, the first of its kind in the Middle East. With this achievement, Iran joins the leading countries in 3D printing technology, USA, UK, Sweden, and Japan.

Dr. Mohammad Reza Movahedi, professor at the Department of Mechanical Engineering of Sharif University of Technology and his Ph.D. student, Keyvan Mohammadi, developed a 3D printer for printing micron-sized pieces, the university official website reports.

Mohammadi explained that “The method is inspired by the physical phenomenon of electrohydrodynamics, where inducing a strong electric field on a large drop changes its form and, under certain conditions, can reduce the drop size by more than ten times and convert it to microsized droplets. The complexity of the multi-physical nature of this process and being influenced by various parameters has made the technology a difficult to achieve.”

The technology has been achieved under Keyvan Mohammadi’s PhD thesis, which, in collaboration with Ali Aarafi, Master student at SUT, has been designed to be conducted in 2 phases: technology acquisition and applied research.

“The main focus on this research project was on electrohydrodynamics printing technology which differs from other technologies in a way that deposition is done in micro and nano scale. The result is the production of precise and finely-tuned products for a wide range of applications in Nanomedicine, Nanosensor, Automotive, Aerospace and etc.”

“The basis of this work is to control the size and shape of droplets with the help of a high voltage electric field and print the droplet in exact dimensions and fine size. If the fluid droplet contains particles of nanopowders of different materials such as silver and this fluid is an evaporable solvent, what remains is a layer of deposited material in micron and even lower resolution with high precision,” he declared.

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