US 12,403,652 B2
Method for determining the priority and the position of three-dimensional products in an additively manufacturing process
Jérôme Moine, Charenton-le-Pont (FR); Mathieu Feuillade, Charenton-le-Pont (FR); and Pascale Goutal, Charenton-le-Pont (FR)
Assigned to Essilor International, Charenton-le-pont (FR)
Appl. No. 17/257,703
Filed by ESSILOR INTERNATIONAL, Charenton-le-Pont (FR)
PCT Filed Jul. 1, 2019, PCT No. PCT/EP2019/067604
§ 371(c)(1), (2) Date Jan. 4, 2021,
PCT Pub. No. WO2020/007797, PCT Pub. Date Jan. 9, 2020.
Claims priority of application No. 18305847 (EP), filed on Jul. 2, 2018.
Prior Publication US 2021/0291442 A1, Sep. 23, 2021
Int. Cl. B29C 64/176 (2017.01); B29C 64/393 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01); B29L 11/00 (2006.01)
CPC B29C 64/176 (2017.08) [B29C 64/393 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12); B29L 2011/0016 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method implemented by a computer configured to determine a batch of a number n>1 of three-dimensional products to be manufactured by an additive manufacturing technology, said method comprising:
receiving at least one order for manufacturing a product by the additive manufacturing technology;
determining a score associated with said product from a set of data comprised in said at least one order, said score being a value representative of at least one characteristic of the product;
assigning to said batch n products each having a same score;
determining, for each product assigned to said batch, positioning spatial parameters of a product model corresponding to the product with regard to a virtual representation of a manufacturing support of the additive manufacturing machine depending on the determined score, said manufacturing support defining a first surface axis, a second surface axis, and a depth axis orthogonal to the first and second surface axes, said positioning spatial parameters comprising one or more of a position and an orientation of the product model corresponding to the respective product with regard to the first surface axis, the second surface axis, and the depth axis;
determining that the respective curvature of one or more of a front face and a back face of a respective first product model corresponding to a first product and a respective second product model corresponding to a second product assigned to the batch have a same curvature, the first product model and the second product model having different dimensions;
determining a respective height of a position of each of the optical centers of the first and second product models respectively corresponding to the first and second products with respect to a lower point along the depth axis, after the determining that the respective curvatures have the same curvature;
determining that the optical centers of the first and second product models respectively corresponding to the first and second products have different determined height distances with respect to the lower point along the depth axis;
providing an additive manufacturing machine with the set of data of each of the products assigned to the batch; and
additively manufacturing each of the products assigned to the batch in a same additively manufacturing operation by irradiating the manufacturing support with an irradiation beam from the manufacturing head, the additive manufacturing including varying the position of the manufacturing support to obtain the first and second products positioned with the optical centers of both the first and second products at a same distance along the depth axis.