Manufacturing & Prototyping

Design Tips For Using Coatings

When designing parts for coatings, there are some things you’ll want to take into account. Even the most impeccably designed parts sometimes face problems during the coating process. By following a few basic design tips, you can avoid potential issues down the road. Read our white paper to learn more.

Posted in: White Papers, Coatings & Adhesives

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Precision Detector Conductance Definition via Ballistic Thermal Transport

This innovation could be applied in the development of bolometric detector array sensors. Goddard Space Flight Center, Greenbelt, Maryland The characteristics of a thermal detector, such as sensitivity, response time, and saturation power (or energy resolution), are functions of the thermal conductance of the detector to its cryogenic environment. The thermal conductance is specified to achieve a tradeoff among the highest sensitivity, allowed response time, and the desired saturation energy or power budget for the particular application. It is essential to achieve the design thermal conductance (within an acceptable variance) after a thermal detector has been fabricated. Otherwise, the detector will fail to achieve its desired functionality. In addition, the formation of a multi-pixel imaging array becomes difficult and costly when the design thermal conductance is not achieved with high post-fabrication yield.

Posted in: Briefs, TSP, Sensors

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Getting The Most Out Of Metal 3D Printing: Understanding Design & Process Controls For DMLS

Metal 3D printing is the ideal alternative to complex designs that machining or casting can’t achieve. It offers the mechanical properties of aerospace standard materials and the design freedom of 3D printing. In this white paper, learn:

Posted in: White Papers

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A Robust Supply Chain: The Important Role Your Contract Manufacturer Can Play

Your complex device demands a robust supply chain. In today’s unsure environment, you need to know that your supply chain is available, flexible, and affordable when you need it. Establishing a strong and effective partnership with a contract manufacturer can ensure that you have the purchasing power and agility needed when the unexpected happens or design changes are needed. “A Robust Supply Chain,” our White Paper, outlines three things to look for in a contract manufacturer and three things you can do to ensure a smooth production process and an improved bottom line.

Posted in: White Papers

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Thermal Spraying of Coatings Using Resonant Pulsed Combustion

This is a high-volume, high-velocity surface deposition of protective metallic and other coatings on surfaces. John H. Glenn Research Center, Cleveland, Ohio Thermal spray coating is not a new process. There are different techniques utilized that depend on the objective function of the coating, the environment to which the coated piece will be subjected, and the coating material used. In any application, quality is ultimately measured by how well the coating material adheres to the sprayed surface. This, in turn, is controlled by the velocity at which the coating material impinges on the substrate, the size of the molten coating particles, and the degree to which the coating material is prevented from chemically reacting while in a molten state.

Posted in: Briefs, TSP

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In-Situ Mixing, Degassing, Decavitation, and Extrusion Modules for Fused Deposition Modeling 3D Printers

A resonant acoustics mixing mechanism equipped with high-vacuum pulling capacity will be employed. John H. Glenn Research Center, Cleveland, Ohio Additively manufactured 3D articles of certain high-temperature polymer composites such as ULTEM 1000 reinforced with chopped carbon fibers and printed by current state-of-the-art Fused Deposition Modeling (FDM) printers, suffer significantly with high porosity due to moisture-induced cavitation during the liquefying process under high printing temperatures because the pre-fabricated feedstock filaments contain excessive moisture trapped in polymer matrix or fiber interfaces that is extremely difficult to remove. During compounding (mixing of chopped fibers with resin) and the filament extrusion process, controlling moisture absorption is extremely difficult and very costly. Furthermore, compounding and filament fabrication are two separate processes normally performed at different plants, and thus add extra costs and technical challenge of keeping the material dry. In the case of the high-temperature polymer, it is even more difficult to control the residual moisture content and is more prone to blistering during FDM printing due to higher melting temperature.

Posted in: Briefs, TSP

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Made in Space: 3D Printing in Zero-G

NASA’s In-Space Manufacturing (ISM) project is responsible for developing the manufacturing capabilities that will provide on-demand, sustainable operations during NASA long-duration missions to destinations such as Mars. The very first step in the initial part of ISM was getting the first 3D printer into space. A 3D printer had never flown in space until the 3D Printing in Zero-G experiment was launched on SpaceX-4 on September 21, 2014. This demonstration was the first attempt to test the effects of microgravity on additive manufacturing in space. The printer was designed and built by Made in Space under a NASA Small Business Innovation Research (SBIR) contract. Learn how NASA and Made In Space worked together to design, develop, and deploy the printer, and how they are taking the next steps to create an Additive Manufacturing Facility in space.

Posted in: White Papers

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