US 11,654,624 B2
Building layers with unsupported portions through selective deposition-based additive manufacturing
J. Samuel Batchelder, Somers, NY (US); Arun Chowdry, Maple Grove, MN (US); and Chris Anton, Rosemount, MN (US)
Assigned to Evolve Additive Solutions, Inc., Minnetonka, MN (US)
Appl. No. 16/958,909
Filed by Evolve Additive Solutions, Inc., Minnetonka, MN (US)
PCT Filed Dec. 28, 2018, PCT No. PCT/US2018/067920
§ 371(c)(1), (2) Date Jun. 29, 2020,
PCT Pub. No. WO2019/133846, PCT Pub. Date Jul. 4, 2019.
Claims priority of provisional application 62/612,066, filed on Dec. 29, 2017.
Prior Publication US 2020/0338815 A1, Oct. 29, 2020
Int. Cl. B29C 64/218 (2017.01); B29C 64/147 (2017.01); B29C 64/364 (2017.01); B29C 64/153 (2017.01); B29C 64/40 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B22F 12/63 (2021.01); B22F 10/40 (2021.01)
CPC B29C 64/218 (2017.08) [B29C 64/147 (2017.08); B29C 64/153 (2017.08); B29C 64/364 (2017.08); B29C 64/40 (2017.08); B22F 10/40 (2021.01); B22F 12/63 (2021.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12)] 12 Claims
OG exemplary drawing
 
1. A method of additive manufacturing utilizing a selective deposition-based process, the method comprising:
conveying a layer of material to previously built layers of material;
determining whether at least one of the conveyed layer of material and a top previously built layer of material contains an unsupported portion;
when at least one of the conveyed layer of material and the top previously built layer of material contains an unsupported portion, using a first set of steps to transfer the conveyed layer of material to the top previously built layer of material, the first set of steps comprising heating at least a portion of the conveyed layer of material to fuse the portion as the conveyed layer of material is conveyed to the previously built layers; and
when neither of the conveyed layer of material and the top previously built layer of material contains an unsupported portion, using a second set of steps to transfer the conveyed layer of material to the top previously built layer of material, wherein the second set of steps lack the step of heating at least a portion of the conveyed layer to fuse the portion.