United States of America As Represented by the Administrator of Nasa

Other

Richard E Martin

Robert A Hafley

Karen M Taminger

William Hudson Hofmeister

Joseph N Zalameda

Eric R Burke

Christopher S Domack

William J Seufzer

Brian L Taminger

Theresa A Butler

Kurt D Twilligear

A method of controlling operation of an electron beam gun and wire feeder during deposition of pools of molten matter onto a substrate to form beads upon solidification of the molten matter. The method includes providing a substrate and a wire source. A molten pool of liquid phase metal is formed on the substrate by melting the wire utilizing an electron beam generated by an electron beam gun. The liquid metal solidifies into a solid phase. A controller utilizes data from a sensor to adjust a process perimeter based, at least in part, on data generated by the sensor.

Process control of electron beam wire additive manufacturing

An apparatus for reviving the appearance of a frame structure in a commercial window utilizes extruded plastic U-shaped channels adapted to fit over each element of the frame structure. The plastic channels are mixed with a selected color so that no painting is required. The channels are preferably attached to the frame structure by adhesive strips. Ends of the channels at frame structure intersections are covered by connectors overlaying ends of the channels.

Decorative cover for commercial window frames

Tree mountable hoist support

A closed-loop control method for an electron beam freeform fabrication (EBF) process includes detecting a feature of interest during the process using a sensor(s), continuously evaluating the feature of interest to determine, in real time, a change occurring therein, and automatically modifying control parameters to control the EBFprocess. An apparatus provides closed-loop control method of the process, and includes an electron gun for generating an electron beam, a wire feeder for feeding a wire toward a substrate, wherein the wire is melted and progressively deposited in layers onto the substrate, a sensor(s), and a host machine. The sensor(s) measure the feature of interest during the process, and the host machine continuously evaluates the feature of interest to determine, in real time, a change occurring therein. The host machine automatically modifies control parameters to the EBFapparatus to control the EBFprocess in a closed-loop manner.

Closed-loop process control for electron beam freeform fabrication and deposition processes

Tree-mountable hoist support

Growing community of inventors

Yorktown, VA, United States of America

Richard E Martin