In the aerospace industry, 3D printing technology has become a "pillar". SpaceX, Blue Origin, Marshall Space Flight Center, Aerojet Rocketdyne, and Rocket Lab have once again proven in 2016 that 3D printing will not only improve the performance of rocket launchers, but also reduce the cost of rocket launches.
Image: Ignus rocket engine from Deepak Atyam and Alex Finch team
In addition to these rockets launching "big coffee", there are also start-ups that are pegged to the market. Tri-D Dynamics is a startup founded by students at the University of California to create small rocket engines using 3D printing or hybrid 3D printing. Tri-D Dynamics has applied for a number of patents, and they believe that 3D-printed rocket engines will make space travel intimate.
Deepak Atyam and Alex Finch, founders of Tri-D Dynamics, have proven that their technology is working well, and their rocket parts can be completed in as little as two days, the slowest of which is two weeks, and by traditional methods The engine produced may take three or four months.
Photo: Deep-Atyam and Alex Finch team's Tri-D rocket rocket engine
The cause of the venture came from Atyam's internship at the Marshall Space Flight Center in Alabama. He found that NASA is working on a 3D printed complete rocket engine. Based on the knowledge gained in the project, he returned to the University of California, San Diego, where he and Finch were both college students. In 2013, they printed and tested an all-metal 3D print engine, making the university the first to complete such a feat.
3D printing uses the EOS M280 3D printer to process cobalt-chromium-containing metal alloys by direct metal laser melting (DMLS).
3D printing better rocket engine
3D printing offers many new opportunities for the design and construction of rocket engines. In terms of design, it is possible to manufacture geometric shapes that are difficult to achieve with conventional manufacturing techniques. Atyam believes that the key components of the engine so far include the rocket's nozzles and combustion chambers, and through 3D printing, the assembly needs can be greatly reduced.
Image: Ignus rocket engine ignition test by Deepak Atyam and Alex Finch team
In addition, the Tri-D Dynamics engine is optimized to eliminate the need for support structures during the printing process. The result is time, labor and cost once printing is complete.
Finch believes that by optimizing fluid flow and cooling channels to improve engine performance, Tri-D Dynamics looks at whether each part is necessary, whether it can be redesigned to reduce the number of parts, and based on this design a new design.
Space launch
Additive manufacturing of rocket engines not only combines unique geometries and design capabilities, but 3D Science Valley believes that it is the only way to manufacture such systems at reasonable cost in a reasonable amount of time.
“Many small satellites and cube satellites are sent into space through larger launch vehicles like SpaceX or ULA rockets,†Atyam said. “It makes it awaiting 1 or 2 years to launch satellites into space. Cube satellite providers have an adverse impact. With advances in computing power and imaging technology, they hope to use new technologies to make satellite launches easier."
Without relying on larger launch vehicles, these companies will turn to smaller, dedicated rockets to bring cube satellites and small satellites into orbit. Atyam said, “These dedicated transmitters are about 60 feet tall and have a payload of only 200 kilograms or less compared to conventional sizes over 200 feet high. The idea of ​​this idea makes the launch of small satellites faster and requires only two weeks. Or once a week, you can keep up with the demand for cube satellite launches."
Finch believes that their business model is to provide exactly the launch service required. "The most critical thing is to reduce the cost of entering space. This is the most logical step, because the most expensive and complex component of the rocket is the engine, and through 3D. Printing technology reduces costs that ULA rockets believe can have the greatest impact, saving up to 15 percent of the total production budget for manufacturing rockets."
Deepak Atyam and Alex Finch are also pursuing postgraduate degrees at Purdue University, where they better understand the market, improve the theoretical knowledge of the rockets, conduct further research and expand their networks.
According to Finch and Atyam, they have submitted to NASA their two small business innovation research programs and small business technology transfer proposals, and hope to get the NASA first phase of the award contract.
(Editor)
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