rocket engine injector


NASA Tests 3-D Printed Engine Components

3-D printing isn’t just for toys and plastic models of your head. Witness a hot fire of NASA’s newest design for rocket engine injectors, 3-D printed to up performance in a way that traditional manufacturing of the parts couldn’t attain.

The agency, which tested the experimental injectors last month at Marshall Space Flight Center in Huntsville, Ala., used a type of 3-D printing called direct laser melting. To make the parts, a machine fires a laser at metal powder under the direction of a computer design program. This deposits layers of the metal one on top of the other until the part is complete.

NASA says the technique is letting engineers build the injector out of just two parts instead of the 163 formerly needed using traditional manufacturing methods.

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Txch This Week: Cancer-Detecting Nanotech And Produce Section Power Production

by Jared Kershner

This week on Txchnologist, NASA tested experimental rocket engine injectors that were 3-D printed to enhance performance over traditionally manufactured components. This 3-D printing technique, called direct laser melting, consists of a machine that fires a laser at metal powder under the control of a computer design program, depositing layers of the metal on top of one another until the part is produced. The hope? To demonstrate that 3-D printed designs can truly revolutionize system performance along with production time and cost.

A team led by biophysicist Markus Sauer and chemist Jürgen Seibel have pioneered a new microscopy method, dSTORM, which stands for direct Stochastic Optical Reconstruction Microscopy. This allows for the visualization of objects in super resolution, revealing details of cells ten times better than ever before by stitching together multiple images to create a single, sharper one. By resolving objects by mere millionths of millimeters across, researchers will inevitably gain new insights into activity in infectious diseases and cancer in human cells.

Harvard roboticists are in the process of constructing a soft-bodied, untethered robot that can continue operating through fire, water, crushing force, and even freezing conditions. Its body is constructed from a composite of silicone, fabric, and hollow glass microspheres. The group’s gains are an important step forward: If robots such as these are to perform rescue missions and survive demanding weather conditions, they need to be able to roam and slither free from cumbersome power connections.

Now we’re bringing you the news and trends we’ve been following this week in the world of science, technology, and innovation.

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