EP 4347169 A1 20240410 - METHOD AND APPARATUS FOR LASER DEPOSITION WELDING
Title (en)
METHOD AND APPARATUS FOR LASER DEPOSITION WELDING
Title (de)
VERFAHREN UND ANLAGE ZUM LASERAUFTRAGSSCHWEISSEN
Title (fr)
PROCÉDÉ ET INSTALLATION DE SOUDAGE DE RECHARGEMENT PAR LASER
Publication
Application
Priority
- DE 102021113757 A 20210527
- EP 2022063464 W 20220518
Abstract (en)
[origin: WO2022248311A1] The invention relates to a method for coating a rotating surface region (12) of a workpiece (14) by laser deposition welding, wherein a pulverulent coating material (22), prior to impinging on the workpiece (14), is melted in a laser beam (18) directed at the surface region (12), wherein a spatially resolved intensity profile of thermal radiation (30) emitted by the workpiece (14) is captured, wherein at least one property of the intensity profile is compared with at least one predefined target value, and wherein at least one parameter of the coating process is altered depending on a result of the comparison. The invention furthermore relates to an apparatus (10) for coating a rotating surface region (12) of a workpiece (14) by laser deposition welding, comprising a laser device (16) for directing a laser beam (18) at the surface region (12), a nozzle (20) for blowing coating material (22) into the laser beam (18), a rotation device (24) for rotating the workpiece (14), a camera (28) for recording an intensity profile of thermal radiation (30) emitted by the workpiece (14), and a control device (32) configured to compare at least one property of the intensity profile with at least one predefined target value and to alter at least one parameter of a coating process depending on a result of the comparison.
IPC 8 full level
B23K 26/03 (2006.01); B23K 26/08 (2014.01)
CPC (source: EP KR US)
B23K 26/032 (2013.01 - EP KR); B23K 26/034 (2013.01 - EP KR); B23K 26/0823 (2013.01 - EP KR); B23K 26/144 (2015.10 - EP KR); B23K 26/342 (2015.10 - EP KR US); B23K 26/702 (2015.10 - US); B23K 31/12 (2013.01 - US); B33Y 10/00 (2014.12 - US); B33Y 30/00 (2014.12 - US)
Citation (search report)
See references of WO 2022248311A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DE 102021113757 A1 20221201; CN 117396296 A 20240112; EP 4347169 A1 20240410; KR 20230169376 A 20231215; US 2024082955 A1 20240314; WO 2022248311 A1 20221201
DOCDB simple family (application)
DE 102021113757 A 20210527; CN 202280038071 A 20220518; EP 2022063464 W 20220518; EP 22730698 A 20220518; KR 20237039863 A 20220518; US 202318518675 A 20231124