Invention Grant
- Patent Title: Flux assisted laser removal of thermal barrier coating
- Patent Title (中): 助焊剂辅助激光去除热障涂层
-
Application No.: US14541590Application Date: 2014-11-14
-
Publication No.: US09592541B2Publication Date: 2017-03-14
- Inventor: Gerald J. Bruck , Ahmed Kamel
- Applicant: Siemens Energy, Inc.
- Applicant Address: US FL Orlando
- Assignee: SIEMENS ENERGY, INC.
- Current Assignee: SIEMENS ENERGY, INC.
- Current Assignee Address: US FL Orlando
- Main IPC: B08B7/00
- IPC: B08B7/00 ; B23K35/36 ; B23P6/00 ; B23P6/04 ; B23K26/34 ; B23K35/02 ; F01D5/00 ; B23K26/18 ; B23K26/32

Abstract:
A method of removing a ceramic thermal barrier coating system (18). Laser energy (20) is applied to the thermal barrier coating system in the presence of a flux material (22) in order to form a melt (26). Upon removal of the energy, the melt solidifies to from a layer of slag (28) which is more loosely adhered to the underlying metallic substrate (12) than the original thermal barrier coating system. The slag is then broken and released from the substrate with a mechanical process such as grit blasting (30). Sufficient energy may be applied to melt an entire depth of the coating system along with a thin layer (34) of the substrate, thereby forming a refreshed surface (36) on the substrate upon resolidification.
Public/Granted literature
- US20150151339A1 FLUX ASSISTED LASER REMOVAL OF THERMAL BARRIER COATING Public/Granted day:2015-06-04
Information query