EP 2498947 A1 20120919 - Method for welding workpieces from extremely heat-proof superalloys with particular feeding rate of the welding filler material
Title (en)
Method for welding workpieces from extremely heat-proof superalloys with particular feeding rate of the welding filler material
Title (de)
Verfahren zum Schweissen von Werkstücken aus hochwarmfesten Superlegierungen mit besonderer Massenzufuhrrate des Schweisszusatzwerkstoffes
Title (fr)
Procédé de soudure de pièces usinées en superalliages résistant aux températures avec un débit particulier du matériau d'apport de soudage
Publication
Application
Priority
- EP 09014234 A 20091113
- EP 2010067188 W 20101110
- EP 10776679 A 20101110
Abstract (en)
[origin: EP2322313A1] The method for welding of workpieces (9) made of heat resistant super alloys, comprises applying welding material (13) on the workpiece surface (10) by a heat input zone (11), and carrying a supply zone for supplying welding material in the heat input zone, where the heat input zone and the supply zone on the one hand and the workpiece surface on the other hand are moved relatively to each other. The welding parameters such as welding capacity, processing speed, diameter of a welding beam are selected so that the cooling rate during solidification of the material is 8000 K/s. The method for welding of workpieces (9) made of heat resistant super alloys, comprises applying welding material (13) on the workpiece surface (10) by a heat input zone (11), and carrying a supply zone for supplying welding material in the heat input zone, where the heat input zone and the supply zone on the one hand and the workpiece surface on the other hand are moved relatively to each other. The mass flow rate of the welding material is 100 mg/minute. The welding parameters such as welding capacity, processing speed, diameter of a welding beam are selected so that the cooling rate during solidification of the material is 8000 K/s. The welding parameters regarding the welding capacity and the diameter of the heat input zone are adjusted. The processing speed is 500 mm/minute. The welding seam is produced through layerwise application of welding material. The prior layer is melted. The previously applied layer is melted in less than the half of its layer thickness. The heat input zone and the supply zone are moved along a welding direction relatively to the workpiece surface for each layer. The welding direction is turned by layers opposite to each other. The heat input zone and the supply zone are moved along a welding direction on a path oscillation the welding direction relatively to the workpiece surface in order to welding direction. The welding material is a gamma -forming nickel-based superalloy material. A heat treatment is carried out on the application of the welding material. A 300W laser or neodymium: yttrium aluminum garnet laser with lambda = 1.06 mu m is used. The laser power is 100-150W. The diameter of a laser beam is 600mu m. A polycrystalline weld seam is produced.
IPC 8 full level
B23K 26/32 (2006.01); B05B 7/22 (2006.01); B23K 26/34 (2006.01); B23P 6/00 (2006.01); F01D 5/00 (2006.01); F01D 5/12 (2006.01)
CPC (source: EP US)
B05B 7/228 (2013.01 - EP US); B23K 26/32 (2013.01 - EP US); B23K 26/34 (2013.01 - US); B23K 26/342 (2015.10 - EP US); B23K 35/007 (2013.01 - EP US); B23K 35/0244 (2013.01 - EP US); B23P 6/007 (2013.01 - EP US); C21D 9/50 (2013.01 - EP US); B23K 2101/001 (2018.07 - EP US); B23K 2103/02 (2018.07 - EP US); B23K 2103/08 (2018.07 - EP US); B23K 2103/26 (2018.07 - EP US); B23K 2103/50 (2018.07 - EP US); F05B 2230/232 (2013.01 - EP US); F05B 2230/30 (2013.01 - EP US); F05B 2230/80 (2013.01 - EP US)
Citation (search report)
See references of WO 2011058045A1
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
DOCDB simple family (publication)
EP 2322313 A1 20110518; CN 102639283 A 20120815; CN 102639283 B 20151209; EP 2498947 A1 20120919; RU 2012124077 A 20131220; RU 2510994 C2 20140410; US 2012267347 A1 20121025; US 9035213 B2 20150519; WO 2011058045 A1 20110519
DOCDB simple family (application)
EP 09014234 A 20091113; CN 201080051539 A 20101110; EP 10776679 A 20101110; EP 2010067188 W 20101110; RU 2012124077 A 20101110; US 201013509002 A 20101110