US 12,258,641 B2
Method and system for heating using an energy beam
Jose Juan Gabilondo, Elgoibar (ES)
Assigned to ETXE-TAR, S.A., Elgoibar (ES)
Appl. No. 17/418,020
Filed by ETXE-TAR, S.A., Elgoibar (ES)
PCT Filed Dec. 20, 2019, PCT No. PCT/EP2019/086572
§ 371(c)(1), (2) Date Jun. 24, 2021,
PCT Pub. No. WO2020/136110, PCT Pub. Date Jul. 2, 2020.
Claims priority of application No. 18383004 (EP), filed on Dec. 28, 2018.
Prior Publication US 2022/0088706 A1, Mar. 24, 2022
Int. Cl. C21D 1/09 (2006.01); B22F 10/28 (2021.01); B22F 10/36 (2021.01); B22F 10/366 (2021.01); B22F 12/41 (2021.01); B22F 12/49 (2021.01); B23K 26/06 (2014.01); B23K 26/073 (2006.01); B23K 26/082 (2014.01); B23K 26/21 (2014.01); B23K 101/00 (2006.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 80/00 (2015.01)
CPC C21D 1/09 (2013.01) [B22F 10/28 (2021.01); B22F 10/366 (2021.01); B22F 12/41 (2021.01); B22F 12/49 (2021.01); B23K 26/0626 (2013.01); B23K 26/073 (2013.01); B23K 26/082 (2015.10); B23K 26/21 (2015.10); B22F 10/36 (2021.01); B23K 2101/006 (2018.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 80/00 (2014.12)] 19 Claims
OG exemplary drawing
 
1. A method for heating at least one selected portion of an object, the method including the following steps:
projecting an energy beam onto a surface of the object so as to produce a primary spot on the surface, and repetitively scanning the beam in two dimensions in accordance with a scanning pattern so as to establish an effective spot on the surface, the effective spot having a two-dimensional energy distribution, and
displacing the effective spot in relation to the surface of the object to progressively heat the at least one selected portion of the object,
wherein the scanning pattern comprises a plurality of interconnected curved segments, and
wherein the scanning pattern comprises at least three lobes, and
wherein at least two of the lobes have different shapes, at least two of the lobes have different sizes, or a combination thereof.