DE102017218859A1 - Cold metal transfer with vaccine and device - Google Patents

Cold metal transfer with vaccine and device Download PDF

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Publication number
DE102017218859A1
DE102017218859A1 DE102017218859.6A DE102017218859A DE102017218859A1 DE 102017218859 A1 DE102017218859 A1 DE 102017218859A1 DE 102017218859 A DE102017218859 A DE 102017218859A DE 102017218859 A1 DE102017218859 A1 DE 102017218859A1
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Germany
Prior art keywords
vaccine
substrate
metal transfer
wire
cold metal
Prior art date
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Withdrawn
Application number
DE102017218859.6A
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German (de)
Inventor
Bernd Burbaum
Torsten Jokisch
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Siemens AG
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Siemens AG
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Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to DE102017218859.6A priority Critical patent/DE102017218859A1/en
Priority to PCT/EP2018/077719 priority patent/WO2019081218A1/en
Publication of DE102017218859A1 publication Critical patent/DE102017218859A1/en
Withdrawn legal-status Critical Current

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    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/04—Welding for other purposes than joining, e.g. built-up welding
    • 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
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
    • B23K1/0018—Brazing of turbine parts
    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/0026—Arc welding or cutting specially adapted for particular articles or work
    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/09—Arrangements or circuits for arc welding with pulsed current or voltage
    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/16—Arc welding or cutting making use of shielding gas
    • B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/23—Arc welding or cutting taking account of the properties of the materials to be welded
    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/32—Accessories
    • B23K9/324—Devices for supplying or evacuating a shielding or a welding powder, e.g. a magnetic powder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P6/00—Restoring or reconditioning objects
    • B23P6/002—Repairing turbine components, e.g. moving or stationary blades, rotors
    • B23P6/007—Repairing turbine components, e.g. moving or stationary blades, rotors using only additive methods, e.g. build-up welding
    • 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
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Coating By Spraying Or Casting (AREA)

Abstract

Durch die Verwendung eines Impfstoffes beim Cold Metal Transfer wird ein feinkörniges Gefüge erzielt.By using a vaccine in cold metal transfer, a fine-grained structure is achieved.

Description

Die Erfindung betrifft das Auftragschweißverfahren CMT (Cold Metal Transfer), bei dem ein Impfstoff zugeführt wird.The invention relates to the deposition welding method CMT (Cold Metal Transfer), in which a vaccine is supplied.

Die Idee betrifft das Auftragschweißen mittels Cold Metal Transfer (CMT)-Prozess mit drahtförmigem Zusatzwerkstoff, der von Fronius entwickelt wurde. Hier werden Nickelbasis-Superlegierungen mit hohem Anteil an intermetallischer y'-Phase geschweißt, die mit herkömmlichen Schweißverfahren nicht rissfrei geschweißt werden können.The idea relates to build-up welding using a cold metal transfer (CMT) process with wire-cut filler material developed by Fronius. Here, nickel-base superalloys with a high proportion of intermetallic y 'phase are welded, which can not be welded without cracking using conventional welding processes.

Es ist daher Aufgabe der Erfindung oben genanntes Problem zu lösen.It is therefore an object of the invention to solve the above-mentioned problem.

Die Aufgabe wird gelöst durch ein Verfahren gemäß Anspruch 1 und eine Vorrichtung gemäß Anspruch 10.The object is achieved by a method according to claim 1 and an apparatus according to claim 10.

In den Unteransprüchen sind weitere vorteilhafte Maßnahmen aufgelistet, die beliebig miteinander kombiniert werden können, um weitere Vorteile zu erzielen.In the dependent claims further advantageous measures are listed, which can be combined with each other in order to achieve further advantages.

Durch das vorgestellte Verfahren werden Impfmittel an der Schweißstelle vorzugsweise über den drahtförmigen Zusatzwerkstoff in ein Schmelzbad transportiert. Dadurch wird die Erstarrung eines feinkörnigen Gefüges begünstigt und Heißrisse während der Erstarrung vermieden.By the presented method, inoculants at the weld are preferably transported via the wire-shaped filler in a molten bath. This favors the solidification of a fine-grained structure and prevents hot cracks during solidification.

Die Figur zeigt schematisch die Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens.The figure shows schematically the device for carrying out the method according to the invention.

Die Figur und die Beschreibung stellen nur Ausführungsbeispiele der Erfindung dar.The figure and the description represent only embodiments of the invention.

Die Figur zeigt eine erfindungsgemäße Vorrichtung 1.The figure shows a device according to the invention 1 ,

Mittels einem aus dem Stand der Technik bekannten Brennerkopf 22 zum Cold Metal Transfer (CMT) wird ein Draht 13 als Schweißzusatzwerkstoff zugeführt wird, insbesondere mittels eines Plasmas aufgeschmolzen wird. Der Schweißzusatzwerkstoff 13 oder das Material 13 des Drahtes ergibt eine Schweißung 7 und/oder ein Schmelzbad 10 auf einem Substrat 4 oder einer bereits vorhandenen Auftragsschweißung.By means of a known from the prior art burner head 22 Cold Metal Transfer (CMT) becomes a wire 13 is supplied as welding filler material, in particular by means of a plasma is melted. The welding filler 13 or the material 13 of the wire results in a weld 7 and / or a molten bath 10 on a substrate 4 or an existing hardfacing.

Der Draht 13 kann auch einen Fülldraht darstellen, bei dem im Inneren und im Mantel des Fülldrahtes verschiedene Materialien verwendet werden. Verschieden bedeutet, dass zumindest ein Legierungselement mehr oder weniger vorhanden ist oder dass sich zumindest ein Legierungselement um mindestens 15%, insbesondere um mindestens 20% unterscheidet.The wire 13 can also represent a cored wire, in which different materials are used inside and in the shell of the cored wire. Different means that at least one alloying element is more or less present or that at least one alloying element differs by at least 15%, in particular by at least 20%.

Das Substrat 4 ist vorzugsweise eine nickel- oder kobaltbasierte Superlegierung.The substrate 4 is preferably a nickel- or cobalt-based superalloy.

Das Material 13 des Drahts ist vorzugsweise ebenfalls eine nickel- oder kobaltbasierte Superlegierung.The material 13 The wire is preferably also a nickel- or cobalt-based superalloy.

Vorzugsweise wird ein artgleiches Material als Auftragschweißung 7 auf das Substrat 4 aufgetragen, insbesondere dasselbe.Preferably, a material of the same material is used as build-up welding 7 on the substrate 4 applied, in particular the same.

Vorzugsweise stellt das Impfmittel 25 ein Lot dar, d.h. ein nickel- oder kobaltbasierter Werkstoff, das einen niedrigeren Schmelzpunkt aufweist als das Material des Drahts 13 oder des Substrats 4, so dass eine anschließende Wärmbehandlung zur Selbstheilung von Mikrorissen aufgrund der Lotzugabe führt. Der Schmelzpunkt des Lots ist mindestens 10K niedriger als das Substrat 4 oder der des Schweißzusatzwerkstoff 13.Preferably, the inoculant provides 25 a solder, ie a nickel- or cobalt-based material that has a lower melting point than the material of the wire 13 or the substrate 4 so that a subsequent heat treatment leads to the self-healing of microcracks due to the addition of solder. The melting point of the solder is at least 10K lower than the substrate 4 or that of the filler metal 13 ,

Der Impfstoff kann auch dem Material des Substrats 4 entsprechen.The vaccine may also be the material of the substrate 4 correspond.

Erfindungsgemäß wird ein Impfmittel 25 zugeführt, um in dem erstarrenden Schmelzbad 10 ein feinkörniges Gefüge zu erzielen.According to the invention, an inoculant 25 fed to the solidifying molten bath 10 to achieve a fine-grained texture.

Der Impfstoff 25 ist vorzugsweise pulverförmig, wird vorzugsweise aufgesprüht und kann auch in einer Lösung aufgesprüht werden.The vaccine 25 is preferably powdered, is preferably sprayed on and can also be sprayed in a solution.

Der Impfstoff 25 wird vorzugsweise nicht direkt dem Schmelzbad 10 zugeführt.The vaccine 25 is preferably not directly to the molten bath 10 fed.

Claims (12)

Verfahren zum Cold Metal Transfer (CMT), bei dem Mittel (16, 19) verwendet werden, um zusätzlich zu einem Schweißzusatzwerkstoff (13) einen Impfstoff (25) in das Schweißbad (10) auf einem Substrat (4) oder in eine Schweißung (7) einzubringen.A method for cold metal transfer (CMT), in which means (16, 19) are used, in addition to a welding filler material (13), to inject a vaccine (25) into the weld pool (10) on a substrate (4) or into a weld (FIG. 7). Verfahren nach Anspruch 1, bei dem mittels zumindest einer Düse (16) der Impfstoff (25) zugeführt wird.Method according to Claim 1 in which the vaccine (25) is supplied by means of at least one nozzle (16). Verfahren nach einem oder beiden der Ansprüche 1 oder 2, bei dem ein Draht einen Schweißzusatzwerkstoff (13) für die Schweißung (7) darstellt, insbesondere bei dem der Draht ein Fülldraht darstellt.Method according to one or both of the Claims 1 or 2 in which a wire represents a welding filler material (13) for the weld (7), in particular in which the wire represents a filler wire. Verfahren nach einem oder mehreren der Ansprüche 1, 2 oder 3, bei dem der Impfstoff (25) aufgesprüht wird, insbesondere auf den Draht (13). Method according to one or more of Claims 1 . 2 or 3 in which the vaccine (25) is sprayed on, in particular on the wire (13). Verfahren nach einem oder mehreren der Ansprüche 1 bis 4, bei dem der Impfstoff (25) dem Material des Substrats (4) artgleich ist, insbesondere dasselbe ist.Method according to one or more of Claims 1 to 4 in which the vaccine (25) is identical to the material of the substrate (4), in particular is the same. Verfahren nach einem oder mehreren der Ansprüche 1 bis 4, bei dem der Impfstoff (25) eine um mindestens 10K niedrigere Solidustemperatur als das Material des Substrats (4) aufweist, insbesondere das Material des Substrats (4) mit zumindest einem Schmelzpunkterniedriger darstellt.Method according to one or more of Claims 1 to 4 in which the vaccine (25) has a solidus temperature at least 10K lower than the material of the substrate (4), in particular the material of the substrate (4) with at least one melting point lower. Verfahren nach einem oder mehreren der Ansprüche 1 bis 6 bei dem der Impfstoff (25) pulverförmig ausgebildet ist.Method according to one or more of Claims 1 to 6 in which the vaccine (25) is powdered. Verfahren nach einem oder mehreren der Ansprüche 1 bis 7, bei dem das Mittel (16), insbesondere die Düse (16), am Ende eines Brennerkopfs (22) einer Schweißvorrichtung (1) angeordnet ist und den Impfstoff (25) dort ausströmen lässt.Method according to one or more of Claims 1 to 7 in which the means (16), in particular the nozzle (16), is arranged at the end of a burner head (22) of a welding device (1) and allows the vaccine (25) to flow out there. Verfahren nach einem oder mehreren der Ansprüche 1 bis 8, bei dem der Impfstoff (25) nicht direkt dem Substrat (10) zugeführt wird.Method according to one or more of Claims 1 to 8th in which the vaccine (25) is not supplied directly to the substrate (10). Vorrichtung (1) zum Cold Metal Transfer, zumindest aufweisend: ein Brennerkopf (22) zum Cold Metal Transfer (CMT) von einem Schweißzusatzwerkstoff (13), Mittel (16, 19), die einen Impfstoff (25) zuführen können.Device (1) for cold metal transfer, at least comprising: a burner head (22) for cold metal transfer (CMT) of a welding consumable material (13), Means (16, 19), who can deliver a vaccine (25). Vorrichtung nach Anspruch 10, bei dem das Mittel (16) am Ende des Brennerkopfs (22) angeordnet ist.Device after Claim 10 in which the means (16) is arranged at the end of the burner head (22). Vorrichtung nach einem oder beiden der Ansprüche 10 oder 11, bei der mittels zumindest einer Düse (16) der Impfstoff (25) zugeführt werden kann, insbesondere aufgesprüht werden kann.Device according to one or both of the Claims 10 or 11 in which the vaccine (25) can be supplied by means of at least one nozzle (16), in particular can be sprayed on.
DE102017218859.6A 2017-10-23 2017-10-23 Cold metal transfer with vaccine and device Withdrawn DE102017218859A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE102017218859.6A DE102017218859A1 (en) 2017-10-23 2017-10-23 Cold metal transfer with vaccine and device
PCT/EP2018/077719 WO2019081218A1 (en) 2017-10-23 2018-10-11 Method and device for cold metal transfer using an inoculant

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Application Number Priority Date Filing Date Title
DE102017218859.6A DE102017218859A1 (en) 2017-10-23 2017-10-23 Cold metal transfer with vaccine and device

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110421230A (en) * 2019-08-08 2019-11-08 沈阳大学 A kind of Ultra-high strength dual phase steels CMT electric arc increasing material manufacturing technique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6414258B1 (en) * 1999-03-23 2002-07-02 Komatsu Ltd. Base carrier for tracklaying vehicle and hard facing method
DE102006021727A1 (en) * 2006-05-02 2007-11-08 Christine Dr. Winkelmann Build-up welding method for producing high wear-resistant surfaces comprises feeding a wire electrode and a powder into an electric arc so that they melt together
DE102013016452A1 (en) * 2013-10-02 2015-04-02 Linde Aktiengesellschaft Process for gas metal arc welding
DE102016117771A1 (en) * 2015-09-21 2017-03-23 Siemens Energy, Inc. Formation and Repair of Oxide Dispersion Cured Alloys by Oxide Melt Alloy Melting

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070241169A1 (en) * 2006-04-13 2007-10-18 General Electric Company Method for welding nickel-based superalloys
DE102015219341A1 (en) * 2015-10-07 2017-04-13 Siemens Aktiengesellschaft Repair of component with existing cracks and component
US10279416B2 (en) * 2016-03-15 2019-05-07 General Electric Company Weld forced crack and braze repair for superalloys

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6414258B1 (en) * 1999-03-23 2002-07-02 Komatsu Ltd. Base carrier for tracklaying vehicle and hard facing method
DE102006021727A1 (en) * 2006-05-02 2007-11-08 Christine Dr. Winkelmann Build-up welding method for producing high wear-resistant surfaces comprises feeding a wire electrode and a powder into an electric arc so that they melt together
DE102013016452A1 (en) * 2013-10-02 2015-04-02 Linde Aktiengesellschaft Process for gas metal arc welding
DE102016117771A1 (en) * 2015-09-21 2017-03-23 Siemens Energy, Inc. Formation and Repair of Oxide Dispersion Cured Alloys by Oxide Melt Alloy Melting

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