EP3046721A1 - Oscillating welding method - Google Patents

Oscillating welding method

Info

Publication number
EP3046721A1
EP3046721A1 EP14786644.6A EP14786644A EP3046721A1 EP 3046721 A1 EP3046721 A1 EP 3046721A1 EP 14786644 A EP14786644 A EP 14786644A EP 3046721 A1 EP3046721 A1 EP 3046721A1
Authority
EP
European Patent Office
Prior art keywords
welding
oscillating
energy source
moved
substrate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP14786644.6A
Other languages
German (de)
French (fr)
Inventor
Nikolai Arjakine
Bernd Burbaum
Michael Ott
Sebastian Piegert
Andres Gasser
Chen Hong
Stefanie Linnenbrink
Frank MENTZEL
Norbert Pirch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Siemens AG
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV, Siemens AG filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Publication of EP3046721A1 publication Critical patent/EP3046721A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/0869—Devices involving movement of the laser head in at least one axial direction
    • B23K26/0876—Devices involving movement of the laser head in at least one axial direction in at least two axial directions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/34—Laser welding for purposes other than joining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/0006—Working by laser beam, e.g. welding, cutting or boring taking account of the properties of the material involved
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
    • B23K26/144—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor the fluid stream containing particles, e.g. powder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/005—Repairing methods or devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/147—Construction, i.e. structural features, e.g. of weight-saving hollow blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/001—Turbines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/20—Manufacture essentially without removing material
    • F05D2230/23—Manufacture essentially without removing material by permanently joining parts together
    • F05D2230/232—Manufacture essentially without removing material by permanently joining parts together by welding
    • F05D2230/234—Laser welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/30—Manufacture with deposition of material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/17—Alloys
    • F05D2300/175—Superalloys

Definitions

  • the invention relates to a welding method in which the welding beam is moved in an oscillating manner.
  • the object is achieved by a method according to claim 1.
  • the figure shows schematically the arrangement of a build-up welding with a laser and a powder feed.
  • the solidification front changes constantly, so that a oscillating solidification is realized.
  • the grain growth is interrupted during the solidification of the melt and the structure solidifies one-grain.
  • the fine graininess of the microstructure distributes the remaining residual welding stresses to the grain boundaries so that cracks in the weld seam or in the weld bead or between them are avoided.
  • the welding process can be a remelting or an order welding. There is one for both methods
  • the figure shows a device 1 of a welding process, in particular a laser welding process.
  • the method is not limited to laser welding, but also applies to electron welding and other welding processes such as plasma welding or other additive manufacturing processes.
  • a substrate 4 which is a nickel- or cobalt-based superalloy with high ⁇ ⁇ content in turbine blades and therefore generally a hard-to-weld alloy, material is applied.
  • a weld bead 6 as part of the build-up weld has already been produced.
  • a molten bath 7 is present.
  • a powder nozzle as an exemplary material supply 10
  • the powder 8 is melted.
  • This laser radiation is in particular pulsed and the material 8 is supplied in the form of powder, but can also be supplied as a wire.
  • the laser radiation or the energy supply 13 can be moved back and forth along the direction 16 vertical to the surface 5 of the substrate 4, so that a variation of the laser beam diameter is produced on the surface of the melt path 7.
  • the deflection is preferably between 1mm and 2mm.
  • an oscillating movement can be performed.
  • the deflection of the oscillating motion is preferably between 1mm and 2mm.
  • the surface to be welded has a length greater than or equal to 4 mm in at least one direction, i.
  • a plurality of weld beads are produced or applied next to each other, which may also overlap.
  • the vertical 16 or horizontal 19 movement can be used individually or combined with one another, both during remelting or build-up welding, and is superimposed on the forward movement of energy supply 13 with respect to substrate 4.
  • plan view of the substrate 4 in the direction 16 with oscillating movement in the direction 19 thus results in a zigzag movement, a meandering or a sinusoidal movement.

Abstract

The oscillating movement during welding in the vertical and/or horizontal direction results in smaller grains being obtained, said smaller grains preventing the development of cracks during welding.

Description

Oszillierendes Schweißverfahren  Oscillating welding process
Die Erfindung betrifft ein Schweißverfahren, bei dem der Schweißstrahl oszillierend bewegt wird. The invention relates to a welding method in which the welding beam is moved in an oscillating manner.
Beim Laserauftragsschweißen von Nickelbasis-Superlegierungen mit hohem Anteil an metallischer Phase γλ kann es schon während der Erstarrung der Schmelze zu Heißrissbildung kommen. Durch Verkleinerung des Strahldurchmessers des Lasers mit kreisförmiger Intensitätsverteilung wird die Abkühlrate erhöht und Erstarrungsrisse können vermieden werden. Jedoch wird dadurch die Aufbauraute des Materials kleiner. Es ist daher Aufgabe der Erfindung ein Schweißverfahren aufzuzeigen, mit dem hohe Abkühlraten und gleichzeitig große Aufbauraten erzielt werden können. In laser deposition welding of nickel-base superalloys with a high proportion of metallic phase γ λ , hot cracking may occur even during the solidification of the melt. By reducing the beam diameter of the laser with a circular intensity distribution, the cooling rate is increased and solidification cracks can be avoided. However, this reduces the build-up of the material. It is therefore an object of the invention to provide a welding method with which high cooling rates and at the same time large build-up rates can be achieved.
Die Aufgabe wird gelöst durch ein Verfahren gemäß Anspruch 1. The object is achieved by a method according to claim 1.
In den Unteransprüchen sind weitere vorteilhafte Maßnahmen aufgelistet, die beliebig miteinander kombiniert werden können, um weitere Vorteile zu erzielen. Das Verfahren erzeugt einfach und schneller rissfreie Mikrostrukturen beim Schweißen. In the dependent claims further advantageous measures are listed, which can be combined with each other in order to achieve further advantages. The process easily and quickly creates crack-free microstructures during welding.
Es zeigt die Figur schematisch die Anordnung einer Auftragsschweißung mit einem Laser und einer Pulverzufuhr. The figure shows schematically the arrangement of a build-up welding with a laser and a powder feed.
Die Figur und die Beschreibung stellen nur Ausführungsbeispiele der Erfindung dar. The figure and the description represent only embodiments of the invention.
Durch eine oszillierende Bewegung in horizontaler und/oder vertikaler Richtung sowie in der Variation der Laserstrahlung verändert sich die Erstarrungsfront ständig, sodass eine oszillierende Erstarrungsform realisiert wird. Durch eine sich ständig verändernde Erstarrungsfunktion wird das Kornwachstum während der Erstarrung der Schmelze unterbrochen und das Gefüge erstarrt einkörnig. Durch die Feinkörnigkeit des Gefüges werden die mithin verbleibenden Schweißeigenspannungen auf die Korngrenzen verteilt, sodass Risse in Schweißnaht oder in Schweißraupe oder zwischen denen vermieden werden. By an oscillating movement in the horizontal and / or vertical direction and in the variation of the laser radiation, the solidification front changes constantly, so that a oscillating solidification is realized. Due to a constantly changing solidification function, the grain growth is interrupted during the solidification of the melt and the structure solidifies one-grain. The fine graininess of the microstructure distributes the remaining residual welding stresses to the grain boundaries so that cracks in the weld seam or in the weld bead or between them are avoided.
Das Schweißverfahren kann ein Umschmelzen oder ein Auftrags- schweißen darstellen. Bei beiden Verfahren gibt es eine The welding process can be a remelting or an order welding. There is one for both methods
Schmelze und eine Erstarrungsfront. Melt and a solidification front.
Die Figur zeigt eine Vorrichtung 1 eines Schweißverfahrens, insbesondere eines Laserschweißverfahrens . The figure shows a device 1 of a welding process, in particular a laser welding process.
Das Verfahren ist nicht beschränkt auf Laserschweißverfahren, sondern gilt auch für Elektronenschweißverfahren und andere Schweißverfahren wie Plasmaschweißverfahren oder auch andere additive Fertigungsverfahren. The method is not limited to laser welding, but also applies to electron welding and other welding processes such as plasma welding or other additive manufacturing processes.
Auf ein Substrat 4, das bei Turbinenschaufeln eine nickel- oder kobaltbasierte Superlegierung mit hohen γλ -Anteil und daher allgemein eine schwer schweißbare Legierung darstellt, wird Material aufgetragen. On a substrate 4, which is a nickel- or cobalt-based superalloy with high γ λ content in turbine blades and therefore generally a hard-to-weld alloy, material is applied.
Eine Schweißraupe 6 als Teil der Auftragsschweißung ist schon erzeugt worden. A weld bead 6 as part of the build-up weld has already been produced.
Dort, wo ein Laser mit seiner Laserstrahlung als beispielhafte Energiequelle 13 auf das Substrat 4 gerichtet ist, ist ein Schmelzbad 7 vorhanden. Über eine Pulverdüse als beispielhafte Materialzufuhr 10 wird das Pulver 8 aufgeschmolzen . There, where a laser is directed with its laser radiation as an exemplary energy source 13 to the substrate 4, a molten bath 7 is present. About a powder nozzle as an exemplary material supply 10, the powder 8 is melted.
Diese Laserstrahlung ist insbesondere gepulst und das Mate- rial 8 wird in Form von Pulver zugeführt, kann aber auch als Draht zugeführt werden. Die Laserstrahlung bzw. die Energiezufuhr 13 kann entlang der Richtung 16 vertikal zur Oberfläche 5 des Substrats 4 hin und her bewegt werden, so dass eine Variation des Laserstrahl - durchmessers auf der Oberfläche der Schmelzbahn 7 erzeugt wird. Die Auslenkung beträgt vorzugsweise zwischen 1mm und 2mm . This laser radiation is in particular pulsed and the material 8 is supplied in the form of powder, but can also be supplied as a wire. The laser radiation or the energy supply 13 can be moved back and forth along the direction 16 vertical to the surface 5 of the substrate 4, so that a variation of the laser beam diameter is produced on the surface of the melt path 7. The deflection is preferably between 1mm and 2mm.
Senkrecht zu der Richtung 16 kann vorzugsweise durch eine horizontale Bewegung 19 quer zur Vorwärtsbewegung der Ener- giezufuhr 13 von Laserstrahlung und Pulverzufuhr 10 relativ zum Schmelzbad 7 alternativ oder zusätzlich eine oszillierende Bewegung durchgeführt werden. Perpendicular to the direction 16, preferably by a horizontal movement 19 transversely to the forward movement of the energy supply 13 of laser radiation and powder feed 10 relative to the molten bath 7, alternatively or additionally, an oscillating movement can be performed.
Die Auslenkung der oszillierenden Bewegung beträgt vorzugsweise zwischen 1mm und 2mm.  The deflection of the oscillating motion is preferably between 1mm and 2mm.
Die zu schweißende Fläche weist in zumindest einer Richtung eine Länge größer gleich 4mm auf, d.h. vorzugsweise werden mehrere Schweißraupen nebeneinander erzeugt oder aufgetragen, die sich auch überlappen können. The surface to be welded has a length greater than or equal to 4 mm in at least one direction, i. Preferably, a plurality of weld beads are produced or applied next to each other, which may also overlap.
Die vertikale 16 bzw. horizontale 19 Bewegung kann einzeln verwendet oder miteinander kombiniert werden, sowohl beim Um- schmelzen oder Auftragsschweißen und ist der Vorwärtsbewegung von Energiezufuhr 13 gegenüber Substrat 4 überlagert. The vertical 16 or horizontal 19 movement can be used individually or combined with one another, both during remelting or build-up welding, and is superimposed on the forward movement of energy supply 13 with respect to substrate 4.
In Draufsicht auf das Substrat 4 in Richtung 16 bei oszillierender Bewegung in Richtung 19 ergibt sich also eine Zick- Zack-Bewegung, eine mäanderförmige oder eine sinusförmige Bewegung. Vergleichbares gilt für eine Aufsicht senkrecht zur Richtung 16 bei oszillierender Bewegung in Richtung 16. In plan view of the substrate 4 in the direction 16 with oscillating movement in the direction 19 thus results in a zigzag movement, a meandering or a sinusoidal movement. The same applies to a plan view perpendicular to the direction 16 with an oscillating movement in the direction 16.
Durch diese Vorgehensweise werden aufgrund der Erfindung verbesserte Materialeigenschaften erreicht. By virtue of this procedure, improved material properties are achieved on the basis of the invention.

Claims

Patentansprüche Patent claims
Verfahren zum Schweißen, welding process,
bei dem eine Energiequelle (13) zum Schweißen und/oder eine Materialzufuhr (10) oszillierend gegenüber der Oberfläche (5) eines Substrats (4) bewegt wird oder werden. in which an energy source (13) for welding and/or a material supply (10) is or are moved in an oscillating manner relative to the surface (5) of a substrate (4).
Verfahren nach Anspruch 1, Method according to claim 1,
bei dem eine Umschmelzschweißung stattfindet. in which refusion welding takes place.
Verfahren nach Anspruch 1, Method according to claim 1,
bei dem eine Auftragsschweißung stattfindet. in which deposition welding takes place.
Verfahren nach einem oder beiden der Ansprüche 1 oder 2, bei dem die Energiequelle (13) oszillierend in vertikaler Richtung (16) zur Oberfläche (5) bewegt wird. Method according to one or both of claims 1 or 2, in which the energy source (13) is moved in an oscillating manner in a vertical direction (16) to the surface (5).
Verfahren nach einem oder mehreren der Ansprüche 1, 2 oder 4 , Method according to one or more of claims 1, 2 or 4,
bei dem die Energiequelle (13) oszillierend in horizontaler Richtung (16) zur Oberfläche (5) bewegt wird. in which the energy source (13) is moved oscillating in the horizontal direction (16) to the surface (5).
Verfahren nach einem oder beiden der Ansprüchen 1 oderMethod according to one or both of claims 1 or
3, 3,
bei dem die Energiequelle (13) und die Materialzufuhr (10) oszillierend horizontal zur Oberfläche (5) des Substrats (4) bewegt werden. in which the energy source (13) and the material supply (10) are moved oscillating horizontally to the surface (5) of the substrate (4).
7. Verfahren nach einem oder mehreren der Ansprüche 1, 3 oder 6 , 7. Method according to one or more of claims 1, 3 or 6,
bei dem eine oszillierende Bewegung in vertikaler Richtung von Energiequelle (13) und Materialzufuhr (10) erfolgt. in which an oscillating movement in the vertical direction of the energy source (13) and material supply (10) takes place.
8. Verfahren nach einem oder mehreren der vorhergehenden Ansprüche 1, 2, 3, 4, 5, 6 oder 7, 8. The method according to one or more of the preceding claims 1, 2, 3, 4, 5, 6 or 7,
bei dem eine Laserstrahlung als Energiequelle (13) verwen- det wird. in which laser radiation is used as an energy source (13).
9. Verfahren nach einem oder mehreren der vorherigen Ansprüche 1, 3, 6, 7 oder 8, 9. Method according to one or more of the previous claims 1, 3, 6, 7 or 8,
bei dem Pulver als Material (8) verwendet wird, in which powder is used as material (8),
das durch die Materialzufuhr (10) zugeführt wird. which is fed through the material feed (10).
10. Verfahren nach einem oder mehreren der vorherigen An- Sprüche, 10. Procedure according to one or more of the previous claims,
bei dem nickel- oder kobaltbasierte Superlegierungen als Substrat (4) verwendet werden. in which nickel or cobalt-based superalloys are used as a substrate (4).
11. Verfahren nach einem oder mehreren der vorhergehenden11. Method according to one or more of the preceding
Patentansprüche 1, 3, 6, 7, 8, 9 oder 10, Patent claims 1, 3, 6, 7, 8, 9 or 10,
bei dem eine Schweißdüse verwendet wird, in which a welding nozzle is used,
die die Materialzufuhr (10) , which the material supply (10),
insbesondere Pulverzufuhr und especially powder supply and
Erzeugung und Zufuhr der Energie (13), Generation and supply of energy (13),
insbesondere der Laserstrahlung, especially laser radiation,
aufweist . having .
12. Verfahren nach einem oder mehreren der vorhergehenden Patentansprüche , 12. Method according to one or more of the preceding patent claims,
bei dem die oszillierende Bewegung bis zu 2mm beträgt, insbesondere eine Auslenkung zwischen 1mm und 2mm beträgt. in which the oscillating movement is up to 2mm, in particular a deflection between 1mm and 2mm.
13. Verfahren nach einem oder mehreren der vorhergehenden Patentansprüche , 13. Method according to one or more of the preceding patent claims,
bei dem die geschweißte Fläche in zumindest einer Ausrichtung größer gleich 4mm beträgt . in which the welded area is greater than or equal to 4mm in at least one orientation.
14. Verfahren nach einem oder mehreren der vorhergehenden Patentansprüche , 14. Method according to one or more of the preceding patent claims,
bei dem mehrere Schweißraupen nebeneinander erzeugt oder aufgetragen werden. in which several weld beads are created or applied next to each other.
EP14786644.6A 2013-12-10 2014-10-13 Oscillating welding method Withdrawn EP3046721A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013225490.3A DE102013225490A1 (en) 2013-12-10 2013-12-10 Oscillating welding process
PCT/EP2014/071904 WO2015086194A1 (en) 2013-12-10 2014-10-13 Oscillating welding method

Publications (1)

Publication Number Publication Date
EP3046721A1 true EP3046721A1 (en) 2016-07-27

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EP14786644.6A Withdrawn EP3046721A1 (en) 2013-12-10 2014-10-13 Oscillating welding method

Country Status (7)

Country Link
US (1) US20160288263A1 (en)
EP (1) EP3046721A1 (en)
KR (2) KR20160079879A (en)
CN (2) CN105813794A (en)
DE (1) DE102013225490A1 (en)
RU (1) RU2638488C1 (en)
WO (1) WO2015086194A1 (en)

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DE102014200834A1 (en) * 2014-01-17 2015-07-23 Siemens Aktiengesellschaft Oscillating welding process
DE102017206843A1 (en) * 2017-04-24 2018-10-25 Siemens Aktiengesellschaft Change in performance when wobbling
CN107442935A (en) * 2017-08-31 2017-12-08 北京航星机器制造有限公司 A kind of aluminium alloy laser oscillating welding technique
CN107511584A (en) * 2017-08-31 2017-12-26 北京航星机器制造有限公司 A kind of shape of a saddle aluminium alloy structure laser welding process method
IT201900004681A1 (en) * 2019-03-28 2020-09-28 Prima Ind Spa PROCEDURE AND ADDITIVE MANUFACTURING SYSTEM
CN110625219A (en) * 2019-09-04 2019-12-31 上海工程技术大学 Electric arc additive manufacturing process for thick-wall aluminum alloy structural parts with different thicknesses
CN111843211A (en) * 2020-08-27 2020-10-30 中车青岛四方机车车辆股份有限公司 Laser welding method and device

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RU2638488C1 (en) 2017-12-13
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US20160288263A1 (en) 2016-10-06
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