US 11,945,158 B2
Interlace scanning strategies and uses thereof
Justin Mamrak, Loveland, OH (US); and Michael Thomas Gansler, Mason, OH (US)
Assigned to General Electric Company, Schenectady, NY (US)
Appl. No. 16/761,656
Filed by General Electric Company, Schenectady, NY (US)
PCT Filed Nov. 2, 2018, PCT No. PCT/US2018/058914
§ 371(c)(1), (2) Date May 5, 2020,
PCT Pub. No. WO2019/094291, PCT Pub. Date May 16, 2019.
Claims priority of provisional application 62/584,553, filed on Nov. 10, 2017.
Prior Publication US 2021/0178665 A1, Jun. 17, 2021
Int. Cl. B29C 64/153 (2017.01); B22F 10/28 (2021.01); B22F 10/36 (2021.01); B22F 10/366 (2021.01); B22F 12/37 (2021.01); B22F 12/52 (2021.01); B22F 12/67 (2021.01); B22F 12/70 (2021.01); B29C 64/268 (2017.01); B33Y 10/00 (2015.01)
CPC B29C 64/153 (2017.08) [B22F 10/28 (2021.01); B22F 10/366 (2021.01); B29C 64/268 (2017.08); B33Y 10/00 (2014.12); B22F 10/36 (2021.01); B22F 12/37 (2021.01); B22F 12/52 (2021.01); B22F 12/67 (2021.01); B22F 12/70 (2021.01)] 20 Claims
OG exemplary drawing
 
8. A non-transitory computer readable medium storing a program configured to cause a computer to execute an additive manufacturing method, the additive manufacturing method comprising:
irradiating a first portion of build material within a first scan region along a first irradiation path to form a first solidification line; and
irradiating a second portion of build material within a second scan region along a second irradiation path to form a second solidification line,
wherein the second scan region is offset with respect to the first scan region thereby defining an offset region, wherein the offset region is at least partially solidified by the first solidification line extending into the offset region along the first irradiation path and the second solidification line extending into the offset region along the second irradiation path, and a reference line intersects the first irradiation path and the second irradiation path within the offset region, wherein the reference line is substantially parallel a side of the first scan region,
wherein an irradiation source is adjusted at a location along the first irradiation path while forming the first solidification line to reduce a power output of the irradiation source while forming a first portion of the first solidification line within the first scan region from a first power output to a second power output upon crossing into the offset region while forming a second portion of the first solidification line within the offset region,
wherein the first solidification line and the second solidification line are spaced from each other within the offset region.