The University of Texas System

Other

Lawrence Eugene Murr

Ryan B Wicker

David Espalin

Fred Irvin Grace

Philip Alexander Morton

Frank Medina

Sara Gaytan

Syed Zia Uddin

Rupert L Nevin

A method of forming a crack-free aluminum alloy structure using additive manufacturing is presented. A powder bed of precursor aluminum alloy powder is heated. The crack-free aluminum alloy structure is formed within a laser powder bed fusion system encompassing the powder bed during heating.

Method and system for powder bed fusion additive manufacturing of crack-free aluminum alloys

Compositions and methods for making a three dimensional structure comprising: designing a three-dimensional structure; melting the three-dimensional structure from two or more layers of a metal powder with a high energy electron or laser beam is described herein. The position where the metal is melted into the structure is formed along a layer of metal powder, wherein the location and intensity of the beam that strikes the metal layer is based on the three-dimensional structure and is controlled and directed by a processor. The instant invention comprises a novel dry state sonication step for removing metal powder that is not melted from the three dimensional structure.

Reticulated mesh arrays and dissimilar array monoliths by additive layered manufacturing using electron and laser beam melting

A method and apparatus for creating dynamic shear within metallic and non-metallic test sample materials under controlled conditions related to high ballistic impact includes the use of test sample having an end face with non-symmetrically placed surfaces extending away from a leading edge of the end face.

Dynamic shear test sample and method

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El Paso, TX, United States of America

Lawrence Eugene Murr