EP4605163A1 - Vorrichtung zum ausformen temperaturbeständiger bauteile durch selektives laserschmelzen - Google Patents
Vorrichtung zum ausformen temperaturbeständiger bauteile durch selektives laserschmelzenInfo
- Publication number
- EP4605163A1 EP4605163A1 EP23789270.8A EP23789270A EP4605163A1 EP 4605163 A1 EP4605163 A1 EP 4605163A1 EP 23789270 A EP23789270 A EP 23789270A EP 4605163 A1 EP4605163 A1 EP 4605163A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- layer arrangement
- alloy
- layers
- temperature
- 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- Withdrawn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
Classifications
-
- 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
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/10—Auxiliary heating means
- B22F12/17—Auxiliary heating means to heat the build chamber or platform
-
- 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
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- 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
Definitions
- the invention relates to a device for selective laser melting.
- the invention further relates to a method for selective laser melting.
- EP 1 355 760 B1 discloses a device for selective laser melting, in which a heating plate is integrated into a construction platform that can reach heating temperatures of more than 500°C.
- the heating plate can be used to heat up layers of metallic materials located on the construction platform during the formation of components by selective laser melting of the layers. This serves to reduce stresses in the respective component during selective laser melting.
- the disadvantage is that components manufactured using devices known from the state of the art often have a comparatively low temperature resistance. Furthermore, components manufactured in this way continue to have increased internal stresses, which lead to an increased tendency to crack in many materials.
- the device according to the invention is designed for selective laser melting of a Ti-Near-g alloy and has the following features:
- a coating device for applying layers of the Ti-Near-o alloy on the substrate plate in a layer arrangement, wherein the layers are arranged on top of one another;
- a laser beam source for fusing at least parts of the layers with a laser beam
- a heating device which is arranged to heat an uppermost layer of the layer arrangement in the direction from the substrate plate to the layer arrangement after the application of the uppermost layer and before the irradiation of the uppermost layer with the laser beam to a temperature in a temperature range of 250°C to 600°C.
- the at least one layer with the Ti-Near-o alloy in the layer arrangement ensures that components that are formed from the layer arrangement by selective laser melting have a comparatively high breaking strength and creep resistance at room temperature as well as at temperatures of several hundred degrees Celsius.
- the Ti-Near-o alloy gives such components a high corrosion resistance.
- the device is designed to heat the top layer of the layer arrangement after application before irradiation with the laser beam, to avoid stresses in the component during the forming of the component, which can lead to cracks in the component, for example. Avoiding such stresses increases the breaking strength and dimensional stability of the components produced by the method according to the invention. Comparatively high growth rates/build rates and large layer thicknesses/layer thicknesses are also made possible during selective laser melting. Preferably, build rates greater than or equal to 20 cm 3 /h and layer thicknesses greater than or equal to 40 pm are made possible.
- Ti-near-o alloys consist mainly of a hexagonal alpha phase and a smaller part of a body-centered cubic beta phase.
- Ti-near-o alloys preferably also contain 1% to 2% of the beta-stabilizing alloying elements vanadium, molybdenum, niobium, tantalum, iron, manganese, chromium, nickel, copper, silicon and/or hydrogen as material.
- Examples of Ti-near-o alloys are Ti-6AI-4V, TI-6AI-4V-ELI, Ti-6AI-6V-2Sn and/or Ti-6AI-7Nb.
- the heating device is designed to heat the layer arrangement in a temperature range of 250°C to 600°C. This reduces stresses between the layers of the layer arrangement in order to increase the mechanical stability of the components formed in the method according to the invention.
- the heating device is designed to heat the top layer to a temperature in a temperature range of 300°C to 500°C, in particular 350°C to 475°C. Heating the respective top layer of the layer arrangement to a temperature in this temperature range results in particularly low stresses in the respective top layer during selective laser melting.
- the scope of the device according to the invention also includes an embodiment which is designed to heat the entire layer arrangement to a temperature in this temperature range.
- the heating device is designed in the form of an electrical heater of the substrate plate, in particular in the form of a resistance heater. Integrating the heating device into the substrate plate results in a compact design of the device. An electrical heating device can be quickly and precisely set to a desired heating temperature.
- the invention also includes an embodiment of the device in which the Ti-near-o alloy is in the form of Ti6242.
- Ti6242 is characterized by a relatively good weldability and a relatively high ductility after preheating in the temperature range according to the invention, with a comparatively simple composition.
- a method for selective laser melting of a Ti-near-o alloy has the following steps: a) coating a substrate plate with a layer arrangement, wherein the layers of the layer arrangement have a Ti-near-o alloy as material and are arranged on top of one another and the layer arrangement has an uppermost layer in the direction from the substrate plate to the layer arrangement; b) heating the uppermost layer of the layer arrangement to a temperature in a temperature range of 250°C to 600°C; c) fusing at least parts of the uppermost layer with a laser beam.
- Fig. 1 shows schematically a device for selective laser melting.
- Fig. 1 shows a schematic sectional view of a device 10 for selective laser melting.
- the device 10 has a substrate plate 12 on which layers 14a, 14b of material powder (not shown) are applied to one another in a layer arrangement 16.
- a top layer 18 of the layer arrangement 16 in the direction SR from the substrate plate 12 to the layer arrangement 16 is heated by a heating device 20 to a temperature in a temperature range between 250°C and 600°C.
- the heating device 20 is designed as an electric heater 22 which is integrated into the substrate plate 12, thereby resulting in a compact design of the device 10 and precise control of the heating temperature by a controller 36 of the electric heater 22.
- the electric heater 22 also heats the other layers 14a, 14b of the layer arrangement 16, thereby reducing stresses between the layers 14a, 14b, 18 of the layer arrangement 16.
- the device 10 has a laser beam source 24 from which a laser beam 26 is emitted, which irradiates the top layer 18.
- a component 28 (here, for example, frustoconical) is formed from the layer arrangement 16.
- stresses in the component 28 are reduced during formation by the selective laser melting of the respective top layer 18.
- the substrate plate 12 is lowered by a lifting device 30 of the device 10 in order to apply a new layer of material powder to the layer arrangement 16 by a coater 32 in a known manner (not shown).
- At least one of the layers here for example layer 14a, has a Ti-Near-o alloy 34 as material (symbolically represented by a black filled box) in order to give the component 28 a higher dimensional stability at temperatures of several hundred degrees Celsius.
- all layers 14a, 14b, 18 of the layer arrangement 16 have the Ti-Near-o alloy 34 as material.
- at least one of the layers 14a, 14b, 18, in particular all layers 14a, 14b, 18, are made of a Ti-Near-o alloy 34.
- Fig. 1 also shows a method 50 according to the invention in which the component 28 is manufactured by laser melting the Ti-Near-o alloy 34, wherein the top layer 18 is heated to more than 250°C but less than 600°C prior to laser melting.
- the invention relates to a device 10 for the selective laser melting of a Ti-near-o alloy 34.
- the device 10 has a layer arrangement 16 with layers 14a, 14b, 18 applied to one another, wherein at least one of the layers 14a has the Ti-near-o alloy 34.
- the layer arrangement 16 is arranged on a substrate plate 12 of the device 10.
- a laser beam source 24 is designed to selectively melt the layers 14a, 14b, 18 with a laser beam 26.
- a heating device 20 of the device 10 can introduce thermal energy into a top layer 18 of the layer arrangement 16 in the direction SR from the substrate plate 12 to the layer arrangement 16 in order to heat the top layer 18 to a temperature between 250°C and 600°C before the top layer is irradiated with the laser beam 26.
- the uppermost layer 18 is in particular the layer of the layer arrangement 16 with the greatest distance from the substrate plate 12.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022127242.7A DE102022127242A1 (de) | 2022-10-18 | 2022-10-18 | Vorrichtung zum Ausformen temperaturbeständiger Bauteile durch selektives Laserschmelzen |
| PCT/EP2023/077861 WO2024083546A1 (de) | 2022-10-18 | 2023-10-09 | Vorrichtung zum ausformen temperaturbeständiger bauteile durch selektives laserschmelzen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4605163A1 true EP4605163A1 (de) | 2025-08-27 |
Family
ID=88373781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23789270.8A Withdrawn EP4605163A1 (de) | 2022-10-18 | 2023-10-09 | Vorrichtung zum ausformen temperaturbeständiger bauteile durch selektives laserschmelzen |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4605163A1 (de) |
| DE (1) | DE102022127242A1 (de) |
| WO (1) | WO2024083546A1 (de) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10104732C1 (de) | 2001-02-02 | 2002-06-27 | Fraunhofer Ges Forschung | Verfahren und Vorrichtung zum selektiven Laser-Schmelzen von metallischen Werkstoffen |
| GB201320888D0 (en) * | 2013-11-27 | 2014-01-08 | Linde Aktiengesellshcaft | Additive manufacturing of titanium article |
| DE102015211170A1 (de) * | 2015-06-17 | 2016-12-22 | Eos Gmbh Electro Optical Systems | Vorrichtung und Verfahren zum Herstellen eines dreidimensionalen Objekts |
| EP3199268A1 (de) * | 2016-01-28 | 2017-08-02 | Siemens Aktiengesellschaft | Verfahren zum generativen herstellen von bauteilen mit heizbarer bauplattform und anlage für dieses verfahren |
| GB2602888B (en) * | 2021-01-18 | 2023-09-06 | Bae Systems Plc | Additive manufacturing using heated gettering |
| DE102021106020A1 (de) * | 2021-03-12 | 2022-09-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein | Bearbeitungssystem und Verfahren zum additiven Aufbau eines Bauteils |
-
2022
- 2022-10-18 DE DE102022127242.7A patent/DE102022127242A1/de active Pending
-
2023
- 2023-10-09 EP EP23789270.8A patent/EP4605163A1/de not_active Withdrawn
- 2023-10-09 WO PCT/EP2023/077861 patent/WO2024083546A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE102022127242A1 (de) | 2024-04-18 |
| WO2024083546A1 (de) | 2024-04-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2794152B1 (de) | Verfahren zur fertigung eines kompakten bauteils sowie mit dem verfahren herstellbares bauteil | |
| EP3013502B1 (de) | Verfahren und bearbeitungsmaschine zum generieren eines dreidimensionalen bauteils durch selektives laserschmelzen | |
| EP2313254B1 (de) | Wechselrahmen für eine vorrichtung zum herstellen eines dreidimensionalen objekts und vorrichtung zum herstellen eines dreidimensionalen objekts mit einem solchen wechselrahmen | |
| DE102009050603B3 (de) | Verfahren zur Herstellung einer β-γ-TiAl-Basislegierung | |
| DE102009034566B4 (de) | Verfahren zum Herstellen eines Tanks für Treibstoff | |
| EP1355760B1 (de) | Verfahren und vorrichtung zum selektiven laserschmelzen von metallischen werkstoffen | |
| WO2016150720A1 (de) | Verfahren zum erzeugen eines bauteiles aus einer superlegierung mit einem pulverbettbasierten additiven herstellungsverfahren und bauteil aus einer superlegierung | |
| EP2952276B1 (de) | Verfahren zur wärmebehandlung eines werkstücks aus einer nickelbasislegierung | |
| WO2015082423A1 (de) | Verfahren zur beschleunigten herstellung von objekten mittels generativer fertigung | |
| WO2019214917A1 (de) | Verfahren, vorrichtung und pulver zur additiven herstellung eines bauteils mit oxidischer dispersionsverstärkung und entsprechendes bauteil | |
| DE102017125597A1 (de) | 3D-Metalldruckverfahren und Anordnung für ein solches | |
| DE112019007062T5 (de) | Verfahren zur herstellung eines tial-legierungsteils und system zur herstellung eines tial-legierungsteils | |
| EP3239468A1 (de) | Verfahren zum herstellen einer schaufel für eine strömungsmaschine | |
| EP4117845A1 (de) | System zur temperierung des bauraums pulverbettbasierter additiver fertigungsanlagen | |
| EP4605163A1 (de) | Vorrichtung zum ausformen temperaturbeständiger bauteile durch selektives laserschmelzen | |
| EP2343143A2 (de) | Verfahren zur Fertigung von Bauteilen aus Refraktärmetallen | |
| DE102009018762A1 (de) | Verfahren zum Herstellen eines metallischen Verbundwerkstoffs mit Kohlenstoffnanoröhren sowie eines endformnahen Bauteils aus diesem Verbundwerkstoff | |
| EP3628646A1 (de) | Mehrteiliger schmelztiegel zum ziehen eines glasstrangs, verfahren zur herstellung des schmelztiegels sowie vertikal-tiegelziehverfahren | |
| WO2014019598A1 (de) | Substratverbund, verfahren und vorrichtung zum bonden von substraten | |
| EP3934830B1 (de) | Pulver zum lasersintern und verwendung | |
| DE2748566B2 (de) | Drehanode für eine Röntgenröhre und Verfahren zu ihrer Herstellung | |
| DE19504359C1 (de) | Verfahren zum Herstellen von Legierungen in einem induktiv beheizten Kaltwandtiegel | |
| DE102005033799B4 (de) | Verfahren zur Herstellung eines Drehanodentellers für Röntgenröhren | |
| EP1652608B1 (de) | Verfahren zum Herstellen einer Hartstoffschicht und beschichtetes Produkt | |
| AT524395B1 (de) | Verfahren und Vorrichtung zum 3D-Drucken von dreidimensionalen Strukturen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20250501 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): 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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20251128 |