Lawrence Livermore National Security, LLC

Other

Lawrence Livermore National Laboratory, LLC

Wayne E King

Manyalibo Joseph Matthews

Saad A Khairallah

Gabe Guss

Alexander M Rubenchik

Otis Raymond Walton

Sonny S Ly

Eric B Herbold

A laser powder bed fusion additive manufacturing system for producing a part by creating a power map that is an intelligent feed forward model to control the laser powder bed fusion additive manufacturing for producing the part and using the power map to control the laser powder bed fusion additive manufacturing for producing the part. This includes an apparatus for producing a part including a powder bed, a laser that produces a laser beam, a proportional integral derivative controller that creates a power map that describes laser power requirements as the laser moves along a path, wherein the laser power requirements prevent defects in the part.

Additive manufacturing power map to mitigate overhang structure

A laser powder bed fusion additive manufacturing system having a powder dispenser that provides powder layers on a build platform; a laser fusion system that fuses the powder layers, wherein spatter particles are produce on the powder layers; and a powder bed sweeping system that sweeps the spatter particles from the powder layers. The powder bed sweeping system includes a brush that has bristles that contact the spatter particles and sweeps the spatter particles from the powder layers.

Additive manufacturing powder spreading technology to mitigate surface defects

An intelligent feed forward model to control additive manufacturing (AM) laser powder bed fusion process and reduce spattering whereby defects are eliminated by controlling the laser power and reducing spattering through a computer model. This application describes using a proportional integral derivative (PID) controller to create a power map that reduces spattering.

Controlling AM spatter and conduction

Additive manufacturing power map to mitigate defects

The shopping cart desk is a portable desk that can be used with a shopping cart. The shopping cart desk can be stored and carried in a ring binder along with shopping coupons, frequent shopper/customer loyalty cards, paper, writing utensils, and other organizational accessories. For use, the shopping cart desk may be removed from the binder and legs may be deployed from within the desk. The desk may then be placed in or near the child seat of a shopping cart to provide a workspace and access to coupons.

Shopping cart desk

An automatic pet watering device installed on the toilet bowl of a conventional toilet, consisting of a conventional toilet bowl having a top cap connected to an outlet for releasing water, a hollow tube extending from the top cap and above the water line and through the toilet bowl and having an end portion bent in a downward position, a water bowl located near the toilet bowl below the hollow tube, the water bowl having an open end and a bottom end, the first end of the water tube connected to the bottom of the water bowl and extending vertically and connected through the toilet bowl and bent downwardly to a point below the water line of the toilet bowl.

Growing community of inventors

Danville, CA, United States of America

Wayne E King