US 12,403,650 B2
Additive manufacturing methods and systems
Victor Petrovich Ostroverkhov, Ballston Lake, NY (US); Christopher Darby Immer, Niskayuna, NY (US); Thomas Charles Adcock, Glenville, NY (US); Justin John Gambone, Schenectady, NY (US); Daniel Jason Erno, Clifton Park, NY (US); Brian Scott McCarthy, Clifton Park, NY (US); and John Joseph Madelone, Jr., South Glen Falls, NY (US)
Assigned to General Electric Company, Evendale, OH (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Jul. 15, 2022, as Appl. No. 17/865,489.
Prior Publication US 2024/0017481 A1, Jan. 18, 2024
Int. Cl. B29C 64/153 (2017.01); B22F 10/28 (2021.01); B22F 12/45 (2021.01); B28B 1/00 (2006.01); B29C 64/268 (2017.01); B29C 64/282 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01)
CPC B29C 64/153 (2017.08) [B22F 10/28 (2021.01); B22F 12/45 (2021.01); B28B 1/001 (2013.01); B29C 64/268 (2017.08); B29C 64/282 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12)] 16 Claims
OG exemplary drawing
 
1. A method of additively manufacturing a three-dimensional object, the method comprising:
irradiating a first build plane region using a first energy beam defining a beam diameter, the first energy beam travelling along a first oscillating path having a varying first amplitude in a first direction to consolidate a first wall defining a thickness perpendicular to the first direction, wherein a build material adjacent a first side of the first wall and the build material adjacent a second side of the first wall, opposite the first side of the first wall, remains unconsolidated, and
irradiating a second build plane region along a second oscillating path having a varying second amplitude in a second direction opposite the first direction to consolidate the first wall, wherein a portion of the first oscillating path travelling in the first direction overlaps a portion of the second oscillating path travelling in the second direction opposite the first direction,
wherein the first oscillating path includes a plurality of first oscillations that bend around and cross itself and the second oscillating path includes a plurality of second oscillations that bend around and cross itself, and wherein the plurality of first oscillations also bend around and cross the plurality of second oscillations, and
wherein the thickness of the first wall is greater than the beam diameter, wherein the plurality of first oscillations and the plurality of second oscillations overlap in an interlace region, and wherein the varying first amplitude increases in the interlace region and the varying second amplitude increases in the interlace region.