EP4017666A1 - Bauteil sowie verfahren zum herstellen eines solchen bauteils mittels additiver herstellung - Google Patents
Bauteil sowie verfahren zum herstellen eines solchen bauteils mittels additiver herstellungInfo
- Publication number
- EP4017666A1 EP4017666A1 EP20797388.4A EP20797388A EP4017666A1 EP 4017666 A1 EP4017666 A1 EP 4017666A1 EP 20797388 A EP20797388 A EP 20797388A EP 4017666 A1 EP4017666 A1 EP 4017666A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- component
- additive manufacturing
- turbine blade
- guide vane
- channel system
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/04—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of turbine blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/04—Welding for other purposes than joining, e.g. built-up 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
- F05D2230/31—Layer deposition
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Definitions
- the invention relates to a component according to the preamble of patent claim 1 and a method for producing such a component according to the preamble of independent patent claim 6.
- Additive manufacturing processes include various manufacturing processes, all of which have a three-dimensional structure. Often additive manufacturing processes are also referred to by the term “additive manufacturing” or “3D printing”. Two well-known additive manufacturing processes are “Selective Laser Melting” (SLM) and “Wire Are Additive Manufacturing” (WAAM).
- SLM Selective Laser Melting
- WAAM Wire Are Additive Manufacturing
- the material to be processed is applied in powder form in a thin layer on a base plate.
- the powdery material is then melted locally by means of a laser beam and forms a solid material structure after it has solidified.
- the base plate is then lowered by the amount of the layer thickness and powder is applied again. This cycle is repeated until the component is completely finished.
- the component is then cleaned of excess powder and can be processed further as required or used immediately.
- the SLM process enables the production of very complex components with a very high manufacturing quality, and very fine and detailed geometries can be produced.
- the object of the present invention is to provide a component which can be produced quickly and inexpensively by means of additive production methods and which has fine and detailed geometries.
- a further object of the invention is to provide a method for producing such a component.
- One embodiment of the invention provides that the component is a turbine blade.
- Turbine blades usually have a complex final contour and are therefore particularly suitable for additive manufacturing processes.
- the invention is particularly suitable for components that have areas with more complex and areas with less complex geometry.
- the turbine blade is a guide vane of a Niederdruckbeschau felung of a steam turbine and has a duct system formed inside the turbine blade, which is connected to a surface of the turbine blade and through which a liquid from the surface of the turbine blades can be suctioned off.
- the water vapor regularly condenses on the guide vane.
- the steam flow can carry away the condensed water, causing water droplets to hit the low-pressure blades rotating at high circumferential speed. This leads to what is known as droplet impact, which can lead to the complete destruction of the rotor blades.
- a preferred embodiment of the invention provides that the channel system is designed by means of SLM.
- SLM process is particularly well suited to creating fine and detailed geometries as required by a sewer system.
- the outer contour of the turbine blade is at least partially produced by means of WAAM.
- the outer contour requires less fine and detailed structures and can therefore be produced in a cost and time-optimized manner using the WAAM process.
- the outer contour can be post-treated, for example to achieve a better surface quality. Machining processes such as grinding are suitable for this purpose, for example.
- the method according to the invention for producing a component according to claim 1, wherein the component is a guide vane for a low-pressure blading of a steam turbine and wherein a duct system is formed in the interior of the guide vane, which is connected to the surface of the turbine blade and through which a liquid is removed from the surface of the Guide vane can be sucked off, is characterized by the following process steps:
- the method according to the invention results in the advantages already described for the guide vane.
- the method according to the invention in particular, by combining the SLM method with the WAAM method, makes it possible to manufacture a guide vane that is optimized in terms of cost and time for low-pressure blading of a steam turbine.
- a Schaufelendkon structure is also to be understood as a near-end contour in which the end contour is formed by further processing, in particular machining, such as grinding. Due to the largely elimination of geometrical restrictions, the guide vane can be optimized compared to guide vanes according to the prior art, for example with regard to liquid suction.
- Fig. 1 shows a turbine blade according to the invention in a three-dimensional representation.
- the figure shows a schematic representation in which only the essential components necessary for the invention are shown and which is not necessarily to scale.
- the turbine blade according to the invention shown in FIG. 1 is a guide vane 1 for low pressure blading of a steam turbine.
- the guide vane 1 is designed as a hollow guide vane and has a channel system 2 (shown in light color) inside.
- the guide vane in Fig.l is cut open at the blade tip so that the channel system 2 can be seen.
- the channel system 2 is connected to the surface 4 of the guide vane 1 via a plurality of openings 3.
- the openings 3 are designed as slots.
- the sewer system 2 is formed by means of the SLM method.
- the SLM method makes it possible to form a channel system 2 with high manufacturing accuracy and finely branched channels, which could not be manufactured with the manufacturing methods used up to now.
- an improved suction of liquid from the surface 4 of the guide vane 1 can be ensured and thus the risk of droplet impact erosion can be significantly reduced.
- the blade end contour (shown in dark) is formed using the WAAM process.
- the WAAM process enables a significantly higher order rate with lower production costs; the production accuracy and production quality are sufficient to form the less complex blade end contour. If necessary, the surface quality or the dimensional accuracy can be further improved by reworking the surface 4.
- Exciting processes such as milling or grinding are particularly suitable as post-treatment processes.
- the slots are preferably made in the guide vane at a later date. This enables faster production of the blade end contour and a flow-optimized surface quality.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019216569.9A DE102019216569A1 (de) | 2019-10-28 | 2019-10-28 | Bauteil sowie Verfahren zum Herstellen eines solchen Bauteils mittels additiver Herstellung |
| PCT/EP2020/078445 WO2021083640A1 (de) | 2019-10-28 | 2020-10-09 | Bauteil sowie verfahren zum herstellen eines solchen bauteils mittels additiver herstellung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4017666A1 true EP4017666A1 (de) | 2022-06-29 |
Family
ID=73020160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20797388.4A Pending EP4017666A1 (de) | 2019-10-28 | 2020-10-09 | Bauteil sowie verfahren zum herstellen eines solchen bauteils mittels additiver herstellung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4017666A1 (de) |
| DE (1) | DE102019216569A1 (de) |
| WO (1) | WO2021083640A1 (de) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015058043A1 (en) * | 2013-10-18 | 2015-04-23 | United Technologies Corporation | Multiple piece engine component |
| EP3206816B2 (de) * | 2014-11-21 | 2024-10-09 | Siemens Energy Global GmbH & Co. KG | Verfahren zur herstellung einer komponente sowie komponente |
| US20180133804A1 (en) * | 2016-11-11 | 2018-05-17 | United Technologies Corporation | Additive manufacturing process with metal chips produced by machining processes as feedstock |
| US10626883B2 (en) * | 2016-12-09 | 2020-04-21 | Hamilton Sundstrand Corporation | Systems and methods for making blade sheaths |
| US10184728B2 (en) * | 2017-02-28 | 2019-01-22 | General Electric Company | Additively manufactured heat exchanger including flow turbulators defining internal fluid passageways |
| DE102017005426A1 (de) * | 2017-06-11 | 2018-12-13 | Christian Schmid | Maschine und Verfahren für die additive und subtraktive Fertigung in einer Aufspannung |
| DE102017215940A1 (de) * | 2017-09-11 | 2019-03-14 | MTU Aero Engines AG | Schaufel einer Strömungsmaschine mit Kühlkanal und darin angeordnetem Verdrängungskörper sowie Verfahren zur Herstellung |
| US10821678B2 (en) * | 2018-11-09 | 2020-11-03 | Raytheon Technologies Corporation | Additive manufactured multi-portion article |
-
2019
- 2019-10-28 DE DE102019216569.9A patent/DE102019216569A1/de active Pending
-
2020
- 2020-10-09 WO PCT/EP2020/078445 patent/WO2021083640A1/de not_active Ceased
- 2020-10-09 EP EP20797388.4A patent/EP4017666A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021083640A1 (de) | 2021-05-06 |
| DE102019216569A1 (de) | 2021-04-29 |
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