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15055 – A time-based (phase-based) Analog to Digital Converter (ADC) that is small, fast, and maintains a high level of accuracy. Analog-to-digital conversion is carried out in a variety of computer and communications applications. Different types of analog-to-digital converters (ADCs) have been developed to convert an analog signal, such as voltage, to a digital signal with a value that... Read More
14774 – Making axisymmetric joints using pressure created by gas evolution from electrically vaporizing thin wires. Current state-of-the-art technology for joining by tube expansion is hydroforming or electromagnetic forming (EMF). Hydroforming requires large presses, and EMF is limited to larger diameter products and electrically conductive driving materials. Generally, application of EMF is... Read More
15293 – A device that can be readily attached to inertia or direct drive friction welding equipment to determine energy efficiency in-situ during welding, providing real-time feedback for improving control. Friction welding is a category of solid-state welding processes that uses frictional heat generation at the weld interface to plasticize the work pieces and produce a metallurgical bond.... Read More
36918 – Modifies titanium alloys to reduce or prevent columnar grain structures in additive manufacturing Titanium alloy components produced by current additive manufacturing (AM) techniques may lead to columnar grains, which introduce undesirable anisotropic material properties to the structure. Additional steps can reduce or eliminate these properties, but the processes are costly and limit... Read More
30146 – A high-temperature metal oxide semiconductor based gas sensor that is doped with noble metals to increase stability and selectively Machines that burn fuel for operation require numerous safety features to detect leaks of volatile and toxic gases that can be harmful or deadly to people if inhaled. Of these gases produced during combustion, carbon monoxide (CO) is one of the most... Read More
36907 – A welding technique that joins two dissimilar metals. Resistance spot welding (RSW) is critical to automobile manufacturing, with 3,000 to 5,000 spot welds per vehicle. As consumers seek vehicles with better fuel economy, automobile manufacturers have replaced parts built from heavy metals, such as advanced high-strength steel (AHSS), with lighter alloys, such as aluminum (Al) and... Read More