Manufacturing & Prototyping

Purifying Hydrogen for a Life Support Process

An advanced hydrogen purification technology is proposed to purify hydrogen of acetylene, carbon monoxide, and other gases to enable utilization of the hydrogen for oxygen recovery. Marshall Space Flight Center, Alabama NASA’s endeavor to further enable long-duration manned space exploration requires further closure of the oxygen loop of the life support system that is currently realized aboard the International Space Station. Currently, oxygen is recovered from crew-generated carbon dioxide via the use of a Sabatier carbon dioxide reduction system coupled with water electrolysis. Water is electrolyzed to form oxygen for crew consumption, as well as hydrogen. The hydrogen is reacted with carbon dioxide, forming water and waste methane gas. Since hydrogen is lost from the desired closed-loop system in the form of methane, there is insufficient hydrogen available to fully react all of the carbon dioxide, resulting in a net loss of oxygen from the loop. In order to further close the oxygen loop, NASA has been developing an advanced plasma pyrolysis technology that further reduces the waste methane to higher hydrocarbons in order to better utilize the hydrogen for oxygen recovery.

Posted in: Briefs

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Low-Pressure Casting of Bulk Metallic Glasses for Gears and Other Applications

Applications include the automotive, aeronautics, aerospace, robotics, commercial, and military/defense industries. NASA’s Jet Propulsion Laboratory, Pasadena, California With the correct selection of composition, some bulk metallic glasses (BMGs) have been demonstrated that have excellent combinations of hardness, fracture toughness, and wear resistance so that their use in gears and gearboxes is a potentially commercially viable application. For BMGs to be used as a low-cost alternative to steel gears, rapid fabrication strategies are needed to cast the BMGs into net-shaped gears that require little or no post-casting machining prior to use. Die casting, suction casting, and other cold-mold casting techniques have been widely demonstrated for BMGs in the past, but the unique nature of gears precludes traditional techniques from being used in an optimal way.

Posted in: Briefs

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3D Printing Today: How Industry is Using and Benefiting from Additive Manufacturing Technology

Are you currently using or planning to implement 3D printing? Find out how your business compares to the broader industry in this major new study, conducted with NASA Tech Briefs magazine. Among the study's conclusions:

Posted in: White Papers

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Make Realistic Prototypes in Less Time with Multi-Material 3D Printing

Creating prototypes that look and feel like their production counterparts greatly reduces the product development cycle and makes communication of design ideas much more effective. Most prototypes, however, are made from multiple parts that need to be assembled, which takes time.

Posted in: On-Demand Webinars

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Fast, On-Demand Jig & Fixture Production with PolyJet

Jigs and fixtures are an essential part of the manufacturing process that are used to position, hold and check parts and assemblies. But making them with traditional methods and materials is often costly and time consuming. PolyJet 3D printing technology offers an alternative that is much more economical and time-efficient, allowing you to quickly make jigs and fixtures as they’re needed. In this webinar you’ll learn more about these and other benefits of PolyJet 3D printed jigs and fixtures.

Posted in: On-Demand Webinars

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Integrating 3D Printing into the Product Development Process

In conjunction with SAE International 3D printing in the product development process is becoming increasingly important with the increase in the pace of the construction industry. Volvo Construction Equipment (CE) has embraced this into its work process. Equipped with a Stratasys Eden 260V, Volvo CE has the ability to create engine component prototypes that are mounted directly on the engine and then tested. Volvo CE also quickly builds 3D models of its new product concepts for stakeholders to get timely feedback, reducing risk and lead time in all development stages. This advantage gives Volvo CE the ability to make better project decisions throughout the development and production cycles.

Posted in: On-Demand Webinars

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Designing for the DMLS Process

Direct Metal Laser Sintering is an emerging additive manufacturing technology that has great potential to change the way parts are manufactured.

Posted in: Tech Talks

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