SYSTEMS AND METHODS FOR MEASURING LAYER TOPOGRAPHY IN THREE-DIMENSIONAL PRINTING PROCESSES

Abstract: the problem of non-ideal layer geometry in 3d printing processes is addressed by systems and methods that employ laser triangulation measurements in the vicinity of the melt pool. the systems and methods generally direct one or more lasers at one or more locations along or perpendicular to a direction of travel of a 3d printing energy source. the one or more lasers are reflected from the one or more locations and received by an optical detector, which generates one or more signals in response to receiving the one or more reflected lasers. the signals are received by a controller, which determines one or more heights of the surfaces at the one or more locations based on the one or more signals. the lasers are scanned across a layer of a 3d printed part to obtain the height of the surface across the layer.

Inventor(s): Goldie Lynne Goldstein

CPC Classification: B22F12/90 (WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER (making alloys by powder metallurgy ); APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER)

Search for rejections for patent application number 20250196231