公开(公告)号：US20230415272A1

公开(公告)日：2023-12-28

申请号：US17851295

申请日：2022-06-28

Applicant: General Electric Company

Inventor： Hongqiang Chen ,  Hrishikesh Keshavan ,  Curtis Alan Johnson ,  Jaewon Moon

IPC: B23K26/364

CPC classification number: B23K26/364

Abstract: A system for forming slots in a coating present on a component includes an electromagnetic radiation beam emitting device having a base, an arm coupled to the base, and a scan head coupled to the arm. The scan head is configured to emit an electromagnetic radiation beam, with at least one of the arm or the scan head being moveable to provide the scan head with motion about at least three axes relative to the component. The system also includes a computing system configured to control an operation of the arm to move a position of the electromagnetic radiation beam relative to a three-dimensional surface of the component such that material is ablated from a coating on the three-dimensional surface to form the slot pattern in the coating.

公开(公告)号：US20230398635A1

公开(公告)日：2023-12-14

申请号：US17806608

申请日：2022-06-13

Applicant: General Electric Company

Inventor： Hrishikesh Keshavan ,  Bernard P. Bewlay ,  Byron A. Pritchard ,  Curtis A. Johnson ,  Hongqiang Chen ,  Jared Micheal Iverson ,  Weston B. Griffin ,  Younkoo Jeong ,  Jaewon Moon

IPC: B23K26/364 ,  B23K26/046 ,  B23K26/08 ,  B23K26/082 ,  B23K26/70 ,  B23K26/03

CPC classification number: B23K26/364 ,  B23K26/046 ,  B23K26/0823 ,  B23K26/082 ,  B23K26/70 ,  B23K26/032 ,  B23K2101/34

Abstract: A coated part, such as a ceramic coated part, having a slot formed in a coating formed on a curvilinear portion of the part and a method of forming the slot. The method includes performing a plurality of laser ablation passes. Each laser ablation pass includes focusing a laser beam to a focus depth, irradiating the coating of the curvilinear portion with the laser beam focused at the focus depth to remove coating material of the coating by laser ablation, and scanning the laser beam in a scanning direction while irradiating the coating of the curvilinear portion with the laser beam. The scanning direction is a direction transverse to a thickness direction of the coating. The focus depth of each subsequent pass of the plurality of laser ablation passes is deeper in a thickness direction of the coating than the pass preceding the subsequent pass.