公开(公告)号：US20220184740A1

公开(公告)日：2022-06-16

申请号：US17603987

申请日：2019-04-16

Applicant: APERAM

Inventor： Ismaël Guillotte ,  Baptiste Latouche ,  Marcos Vinicius Lopes ,  Jean-Michel Damasse ,  Francis Diet

IPC: B23K26/352 ,  B23K26/0622 ,  B23K26/082

Abstract: A method for creating an iridescent effect on a surface through formation of wavelets on the source can include using a pulse of laser beams sent to the surface in juxtaposed optical fields of a focusing system. A scanner scans the surface using laser beams along a series of lines that follow each other in a relative direction of travel of the part and of the scanner and a series of lines that lie in continuation of each other in a direction perpendicular to the relative direction of travel. The optical fields overlap in an overlapping area having a width that is twice the diameter of the pulse laser beam up to 2 cm. Two lines lying in continuation of each other overlap at a junction and between the two series of lines follow each other in a relative direction of travel of the part and the scanner.

公开(公告)号：US11833616B2

公开(公告)日：2023-12-05

申请号：US17603987

申请日：2019-04-16

Applicant: APERAM

Inventor： Ismaël Guillotte ,  Baptiste Latouche ,  Marcos Vinicius Lopes ,  Jean-Michel Damasse ,  Francis Diet

IPC: B23K26/352 ,  B23K26/0622 ,  B23K26/082 ,  B23K101/18 ,  B23K103/04

CPC classification number: B23K26/355 ,  B23K26/0624 ,  B23K26/0821 ,  B23K2101/18 ,  B23K2103/05

Abstract: A method for creating an iridescent effect on a surface through formation of wavelets on the source can include using a pulse of laser beams sent to the surface in juxtaposed optical fields of a focusing system. A scanner scans the surface using laser beams along a series of lines that follow each other in a relative direction of travel of the part and of the scanner and a series of lines that lie in continuation of each other in a direction perpendicular to the relative direction of travel. The optical fields overlap in an overlapping area having a width that is twice the diameter of the pulse laser beam up to 2 cm. Two lines lying in continuation of each other overlap at a junction and between the two series of lines follow each other in a relative direction of travel of the part and the scanner.

公开(公告)号：US11548046B2

公开(公告)日：2023-01-10

申请号：US16463678

申请日：2016-11-23

Applicant: APERAM

Inventor： Baptiste Latouche ,  Ismael Guillotte ,  Antonin Marissael ,  Ward Neven ,  Jean-Michel Damasse

IPC: B21C43/04 ,  B23K26/361 ,  B23K26/70 ,  B21C51/00 ,  B23K26/03 ,  B23K26/08 ,  B23K26/40 ,  B23K103/04 ,  B23K101/16

Abstract: A laser descaling device and process includes a first laser sending a ray to the product to be descaled, reflected rays being intercepted by sensors that send collected information into a processing unit that calculates the absorption of the ray by the surface of the product, deduces the emissivity of the oxidized surface in the direction of the reflected rays, and correlates this emissivity with reference information prerecorded inside the processing unit; a second laser sends a ray onto the surface of the product, the spots of the rays covering the entire surface to be descaled, the second laser being controlled by a control unit receiving information provided by the processing unit making it possible to determine the operating parameters to be imposed on the second laser to obtain the descaling of the surface of the product, compared with experimental results prerecorded in the control unit.

公开(公告)号：US20220274204A1

公开(公告)日：2022-09-01

申请号：US17604077

申请日：2019-04-16

Applicant: APERAM

Inventor： Ismaël Guillotte ,  Baptiste Latouche ,  Marcos Vinicius Lopes ,  Jean-Michel Damasse ,  Francis Diet

IPC: B23K26/352 ,  B23K26/0622 ,  B23K26/082 ,  B23K26/04 ,  G02B27/28 ,  G02B5/30

Abstract: Method for creating an iridescent visual effect on the surface of a part, using a laser beam having a pulse duration of less than a nanosecond sent onto said surface in the optical field of the focusing system of a device comprising also a laser source and a scanner, to apply wavelets having the same orientation to said surface over the pulse width. The scanner scans the surface using laser radiation along a series of consecutive lines, or a matrix of points using relative movement of said surface and the device, the width of each line or the dimension of each point of each matrix being equal to the pulse diameter. Between the carrying out of the scanning along two consecutive lines or two adjacent points the polarization of the laser beam is modified to create wavelets having different orientations on two consecutive lines or two adjacent points.