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Edge-Bonded Shims

Edge-bonded shims reduce assembly time and require less inventory storage space. SPIROL International Corp., Danielson, Connecticut Precision shims are used as compensators to absorb tolerances between mating components. They significantly reduce manufacturing costs by eliminating the need for each component to be precision-machined in order to achieve the proper fit and function of the total assembly. During the assembly process, shims provide adjustment to compensate for accumulated tolerances that significantly reduces the need for re-machining and assembly time. Additionally, shims are commonly used to preserve the faces between mating components, cutting down the required machining time during rebuilds/retrofitting.

Posted in: Briefs

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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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Products of Tomorrow: February 2016

The technologies NASA develops don’t just blast off into space. They also improve our lives here on Earth. Life-saving search-and-rescue tools, implantable medical devices, advances in commercial aircraft safety, increased accuracy in weather forecasting, and the miniature cameras in our cellphones are just some of the examples of NASA-developed technology used in products today.

Posted in: Products

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Scientists Print in 4D

Scientists at the Wyss Institute for Biologically Inspired Engineering at Harvard University and the Harvard John A. Paulson School of Engineering and Applied Sciences have brought a fourth dimension to their microscale 3D printing technology.

Posted in: News

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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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