Manufacturing & Prototyping

3D Printer Heads to International Space Station

The first 3D printer is soon to fly into Earth orbit, finding a home aboard the International Space Station (ISS). The size of a small microwave, the unit is called Portal. The hardware serves as a testbed for evaluating how well 3D printing and the microgravity of space combine. The soon-to-fly 3D printer can churn out plastic objects within a span of 15 minutes to an hour.The technology works by extruding heated plastic, and then builds successive layers to make a three-dimensional object. In essence, the test on the ISS might well lead to establishing a “machine shop” in space. The 3D printer experiment is being done under the tech directorate's Game Changing Development Program, a NASA thrust that seeks to identify and rapidly mature innovative/high impact capabilities and technologies for infusion in a broad array of future NASA missions.According to the team, manufacturing assets in space, as opposed to launching them from Earth, will accelerate and broaden space development while providing unprecedented access for people on Earth to use in-space capabilities. SourceAlso: Learn about Ammonia Leak Detection on the ISS.

Posted in: Manufacturing & Prototyping, Rapid Prototyping & Tooling, Materials, Plastics, Test & Measurement, Aerospace, News

Read More >>

3D Printing in Space: The Next Frontier

NASA has a long-term strategy for In-Space Manufacturing that includes fabricating components and equipment on demand for human missions to the Moon, Mars, and beyond. To support this strategy, NASA’s Marshall Space Flight Center (MSFC) and Made In Space, Inc. have developed the 3D Printing In Zero-G Technology Demonstration for the International Space Station (ISS). The experiment will be the first machine ever to perform 3D printing in space.

Posted in: Manufacturing & Prototyping, White Papers

Read More >>

Durable Joining Technology for Uniformly-Curved Composite Sandwich Structures

An insert improves distribution of load through the joint, increasing safety. Langley Research Center, Hampton, Virginia NASA’s next-generation launch vehicles will be enabled by high-performance composite materials and innovative manufacturing methods. As such, NASA uses adhesively bonded joints where possible instead of mechanically fastened (bolted) joints to design and manufacture structures. The adhesive joints typically are lighter and distribute loads more efficiently across an interface, while mechanically fastened joints are prone to stress concentrations around the bolts.

Posted in: Manufacturing & Prototyping, Briefs

Read More >>

Ohmic Contact to N- and P-Type Silicon Carbide

Ohmic contact can be formed in one process step. John H. Glenn Research Center, Cleveland, Ohio Electrical ohmic contacts can be simultaneously formed on silicon carbide (SiC) semiconductors having donor and acceptor impurities (n- and p-type doping, respectively). This implies that such contacts can be formed on SiC layers in one process step during the fabrication of the semiconductor device. This also means that the multiple process steps for fabricating contacts onto n- and p-type surfaces, which is characteristic of the prior art, will be greatly reduced, thereby reducing time and cost, and increasing yield (more process steps and complexity increases chances for lower yields). Another significance of this invention is that this scheme can serve as a non-discriminatory, universal ohmic contact to both n- and p-type SiC, without compromising the reliability of the specific contact resistivity when operated at temperatures in excess of 600 °C.

Posted in: Manufacturing & Prototyping, Briefs

Read More >>

Flap Edge Noise Reduction Fins

This innovation has applications in aircraft leading edge slats and rotor tips for propulsion components on both aircraft and rotorcraft, as well as on wind turbines. Langley Research Center, Hampton, Virginia Aircraft noise is a significant problem with both economic and public health implications, especially for communities near airports. As a result, increasingly stringent constraints are being placed on aircraft carriers worldwide to reduce this noise. The current disclosure focuses on airframe noise generated at or near the surface of the flap-side edge.

Posted in: Manufacturing & Prototyping, Briefs

Read More >>

Researchers Create Energy-Absorbing Material

Materials like solid gels and porous foams are used for padding and cushioning, but each has its own advantages and limitations.A team of engineers and scientists at Lawrence Livermore National Laboratory (LLNL) has found a way to design and fabricate, at the microscale, new cushioning materials with a broad range of programmable properties and behaviors that exceed the limitations of the material's composition, through additive manufacturing, also known as 3D printing. Livermore researchers, led by engineer Eric Duoss and scientist Tom Wilson, focused on creating a micro-architected cushion using a silicone-based ink that cures to form a rubber-like material after printing. During the printing process, the ink is deposited as a series of horizontally aligned filaments (which can be fine as a human hair) in a single layer. The second layer of filaments is then placed in the vertical direction. This process repeats itself until the desired height and pore structure is reached.The researchers envision using their novel energy-absorbing materials in many applications, including shoe and helmet inserts, protective materials for sensitive instrumentation, and in aerospace applications to combat the effects of temperature fluctuations and vibration.SourceAlso: Read more Materials tech briefs.

Posted in: Manufacturing & Prototyping, Rapid Prototyping & Tooling, Materials, Aerospace, Defense, News

Read More >>

Custom Surface Inspection System for Safety-Critical Processes

Researchers have engineered a high-precision modular inspection system that can be adapted on a customer-specific basis and integrated into the production process. Before a workpiece leaves the production plant, it is subjected to rigorous inspection. For safety-critical applications such as in the automotive or aerospace industries, manufacturers can only use the most impeccable parts.

Posted in: Cameras, Imaging, Manufacturing & Prototyping, Industrial Controls & Automation, Consumer Product Manufacturing, Test & Measurement, Measuring Instruments, Aerospace, News, Automotive

Read More >>

White Papers

PICO xMOD Data Sheet
Sponsored by Nordson EFD
Linear Motors Application Guide
Sponsored by Aerotech
A Brief History of Modern Digital Shaker Controllers
Sponsored by Crystal Instruments
Serial Fabrics Improve System Design
Sponsored by Pentek
Epoxies and Glass Transition Temperature
Sponsored by Master Bond
100% Non-Cytotoxic Rechargeable Batteries for Medical Devices
Sponsored by Cymbet

White Papers Sponsored By: