DE102017220763A1 - Cladding with powdery filler under water - Google Patents
Cladding with powdery filler under water Download PDFInfo
- Publication number
- DE102017220763A1 DE102017220763A1 DE102017220763.9A DE102017220763A DE102017220763A1 DE 102017220763 A1 DE102017220763 A1 DE 102017220763A1 DE 102017220763 A DE102017220763 A DE 102017220763A DE 102017220763 A1 DE102017220763 A1 DE 102017220763A1
- Authority
- DE
- Germany
- Prior art keywords
- under water
- welding
- nozzle
- filler material
- 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- Withdrawn
Links
Images
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
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
- B23K26/122—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure in a liquid, e.g. underwater
-
- 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
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/0869—Devices involving movement of the laser head in at least one axial direction
-
- 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
-
- 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
- B23K26/146—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 a liquid
-
- 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
- B23K26/1462—Nozzles; Features related to nozzles
- B23K26/1464—Supply to, or discharge from, nozzles of media, e.g. gas, powder, wire
- B23K26/1476—Features inside the nozzle for feeding the fluid stream through the nozzle
-
- 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
- B23K26/342—Build-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
- 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
- B23K2103/18—Dissimilar materials
- B23K2103/26—Alloys of Nickel and Cobalt and Chromium
Abstract
Durch das Auftragschweißen unter Wasser (13) wird kein Prozessgas mehr benötigt und höhere Abkühlraten sind möglich.Contract welding under water (13) no longer requires process gas and higher cooling rates are possible.
Description
Die Erfindung betrifft ein Auftragschweißen mit pulverförmigem Zusatzwerkstoff unter Wasser.The invention relates to an overlay welding with powdered filler material under water.
Auftragschweißverfahren werden häufig durchgeführt an Bauteilen, um einen Materialverlust auszugleichen. Dabei können Pulver- oder drahtförmige Zusatzwerkstoffe verwendet werden.Cladding processes are often performed on components to compensate for material loss. In this case, powder or wire-shaped filler materials can be used.
Als Energiequelle können ein Plasma-, ein Laser- oder ein Elektronenstrahl verwendet werden. Dabei ist oft ein Einsatz von Schutzgasen notwendig.As a power source, a plasma, a laser or an electron beam can be used. This often requires the use of protective gases.
Bei schwer schweißbaren Werkstoffen wie nickel- oder kobaltbasierten Superlegierungen ist eine hohe Abkühlrate notwendig um ein feines Korn im geschweißten Gefüge zu erreichen.For hard-to-weld materials such as nickel- or cobalt-based superalloys, a high cooling rate is necessary to achieve a fine grain in the welded structure.
Es ist daher Aufgabe der Erfindung oben genanntes Verfahren zu verbessern.It is therefore an object of the invention to improve the above-mentioned method.
Die Aufgabe wird gelöst durch ein Verfahren gemäß Anspruch 1 und Vorrichtung gemäß Anspruch 2.The object is achieved by a method according to
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.
Zur Lösung wird vorgeschlagen ein Laserstrahl-Auftragschweißen mit pulverförmigen Zusatzwerkstoff unter Wasser bzw. mit einem Wasserstrahl.To solve the proposed laser beam buildup welding with powdered filler material under water or with a water jet.
Prozessbeschreibung (optimal):
- - ein Laserstrahl-Auftragschweißen mit pulverförmigen Zusatzwerkstoff wird in einem Wasserbad oder in einem Wasserstrahl durchgeführt
- - ein pulverförmiger Zusatzwerkstoff wird durch eine Wasserleitung über eine Düsentechnologie zum Schmelzbad geführt
- - Fokussierung / Führung des pulverförmigen Zusatzwerkstoffs zur Laserstrahlung wird über eine Umlenkung oder durch eine Absaugung in die koaxialen Düsentechnologie hinein erzielt
- - durch eine Rückführung des nicht aufgeschweißten Pulverwerkstoffs zum Pulverfördersystem wird eine Wiederverwendung des Pulverwerkstoffs ermöglicht
- - bei dem Prozess werden zur Abschirmung des Schmelzbads keine Schutzgase wie Helium oder Argon eingesetzt.
- - Laser deposition welding with powdered filler material is carried out in a water bath or in a water jet
- - A powdered filler is passed through a water pipe via a nozzle technology to the molten bath
- - Focusing / guiding the powdery filler material to the laser radiation is achieved via a deflection or by an extraction in the coaxial nozzle technology inside
- - By a return of the non-welded powder material to the powder delivery system reuse of the powder material is made possible
- - In the process, no shielding gases such as helium or argon are used to shield the molten bath.
Vorteile sind:
- - Keine Schutzgase für Prozess notwendig
- → Einsparung von Kosten für Argon, Helium
- → keine Absaugung erforderlich
- - Höhere Abkühlgeschwindigkeit im Vergleich mit konventionellen Laserstrahl-Auftragschweißen unter Schutzgas
- → feineres Korn im geschweißten Gefüge
- - Rückführung der nicht auftraggeschweißte Pulverwerkstoffs zum Fördersystem
- → kleinerer Verlust an Zusatzwerkstoff im Vergleich zu konventionellen Auftragschweißen.
- - No protective gases necessary for process
- → saving on costs for argon, helium
- → no extraction required
- - Higher cooling rate compared to conventional laser cladding under inert gas
- → finer grain in the welded structure
- - Return of the non-welded powder material to the conveyor system
- → smaller loss of filler material compared to conventional build-up welding.
Es zeigt die Figur schematisch die erfindungsgemäße Vorrichtung
Die Vorrichtung
Der beispielhafte Laserstrahl
The
Ein Schweißzusatzwerkstoff
Die Düse
Die Düse
Der Schweißzusatzwerkstoff
Das Pulverreservoir kann vorzugsweise auch zwei verschiedene Pulver aufweisen, die miteinander vermischt werden, wie z.B. ein Basismaterial und ein Lotmaterial.The powder reservoir may also preferably comprise two different powders which are mixed together, e.g. a base material and a solder material.
Auf dem Substrat
Das Substrat
The substrate
Das bedeutet, dass der Schweißzusatzwerkstoff
Die Düse
Das Substrat
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017220763.9A DE102017220763A1 (en) | 2017-11-21 | 2017-11-21 | Cladding with powdery filler under water |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017220763.9A DE102017220763A1 (en) | 2017-11-21 | 2017-11-21 | Cladding with powdery filler under water |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102017220763A1 true DE102017220763A1 (en) | 2019-05-23 |
Family
ID=66336466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102017220763.9A Withdrawn DE102017220763A1 (en) | 2017-11-21 | 2017-11-21 | Cladding with powdery filler under water |
Country Status (1)
Country | Link |
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DE (1) | DE102017220763A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015103939A1 (en) * | 2015-03-17 | 2016-09-22 | GEFERTEC GmbH | Process for the additive production of a molded article |
DE102016104276A1 (en) * | 2015-03-17 | 2016-09-22 | GEFERTEC GmbH | Method and plant for additive manufacturing using a wire-shaped material |
DE102016105162A1 (en) * | 2016-03-21 | 2017-09-21 | GEFERTEC GmbH | Process and plant for the additive production of metallic moldings |
-
2017
- 2017-11-21 DE DE102017220763.9A patent/DE102017220763A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015103939A1 (en) * | 2015-03-17 | 2016-09-22 | GEFERTEC GmbH | Process for the additive production of a molded article |
DE102016104276A1 (en) * | 2015-03-17 | 2016-09-22 | GEFERTEC GmbH | Method and plant for additive manufacturing using a wire-shaped material |
DE102016105162A1 (en) * | 2016-03-21 | 2017-09-21 | GEFERTEC GmbH | Process and plant for the additive production of metallic moldings |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R163 | Identified publications notified | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |