HIG™: Combining the Benefits of Inductive and Resistive Heating

Harmonic Inductive Gain (HIG™) is a rapidly growing technology that is changing the game in what has previously been a stagnating technology; inductive heating. HIG utilizes a pulsed output signal rich in high frequency harmonics to deliver an intensely changing magnetic field in place of a sinusoidal signal generated from large currents. This approach allows for efficiency gains that permit air-cooled power supplies and coils to be realized. Modulation of the output pulse allows for precise control over output power with 1W precision regardless of coil configuration, coil type, or load type; affording full flexibility in coil design. The resultant system is incredibly versatile and intelligent offering the same ‘plug and play’ design flexibility as resistive heating while maintaining the highest level of efficiency and reliability available with induction.

Posted in: Manufacturing & Prototyping, White Papers

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3D Printing with FDM: How it Works

A 3D printer is a machine that creates objects from plastic or other materials using an additive manufacturing process. Additive manufacturing produces objects in a succession of layers from the bottom, up. This is the opposite of traditional subtractive manufacturing processes.

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3D PRINTERS VS. 3D PRODUCTION SYSTEMS: 10 Distinguishing Factors to Help Select a System

This paper addresses the capabilities, roles and positioning of systems geared for professional use. Beginning with the most basic information – the definition of 3D printers – this whitepaper positions the two product classes.

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Aerospace Tooling: 3D Technology Enables Virtual Design

Building aircraft has always been a struggle between the size of their components and the need to craft them carefully. More than any other device, airplanes epitomize the concept that “the devil is in the details” because in small errors lies the potential for great mischief such as increased drag and decreased range. In this white paper you will learn how the laser tracker gives aerospace manufacturers the ability to be more cost competitive by shifting the whole process of design and development into the virtual realm.

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Advanced Materials and Fabrication Techniques for the Orion Attitude Control Motor

Rhenium is ideally suited for high-temperature applications. Rhenium, with its high melting temperature, excellent elevated temperature properties, and lack of a ductile-to-brittle transition temperature (DBTT), is ideally suited for the hot gas components of the ACM (Attitude Control Motor), and other hightemperature applications. However, the high cost of rhenium makes fabricating these components using conventional fabrication techniques prohibitive. Therefore, near-net-shape forming techniques were investigated for producing cost-effective rhenium and rhenium alloy components for the ACM and other propulsion applications.

Posted in: Manufacturing & Prototyping, Briefs

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Silicon/Carbon Nanotube Photocathode for Splitting Water

The combination of materials is expected to increase the efficiency of the redox reaction. A proof-of-concept device is being developed (see figure) for hydrogen gas production based on water-splitting redox reactions facilitated by cobalt tetra-aryl porphyrins (Co[TArP]) catalysts stacked on carbon nanotubes (CNTs) that are grown on n-doped silicon substrates. The operational principle of the proposed device is based on conversion of photoelectron energy from sunlight into chemical energy, which at a later point, can be turned into electrical and mechanical power.

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Circularly Polarized Microwave Antenna Element With Very Low Off-Axis Cross-Polarization

The goal of this work was to improve offaxis cross-polarization performance and ease of assembly of a circularly polarized microwave antenna element. To ease assembly, the initial design requirement of Hexweb support for the internal circuit part, as well as the radiating disks, was eliminated.

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