DE102007059865A1 - Producing a mold body by structuring powder forming metallic material in layered manner, comprises subjecting layers one upon the other and melting each powder layer before bringing the powder layer with a wave like high energy radiation - Google Patents
Producing a mold body by structuring powder forming metallic material in layered manner, comprises subjecting layers one upon the other and melting each powder layer before bringing the powder layer with a wave like high energy radiation Download PDFInfo
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- DE102007059865A1 DE102007059865A1 DE102007059865A DE102007059865A DE102007059865A1 DE 102007059865 A1 DE102007059865 A1 DE 102007059865A1 DE 102007059865 A DE102007059865 A DE 102007059865A DE 102007059865 A DE102007059865 A DE 102007059865A DE 102007059865 A1 DE102007059865 A1 DE 102007059865A1
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- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1035—Liquid phase sintering
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- 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]
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- 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
- B22F10/30—Process control
- B22F10/36—Process control of energy beam parameters
- B22F10/364—Process control of energy beam parameters for post-heating, e.g. remelting
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- 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
- B22F10/30—Process control
- B22F10/32—Process control of the atmosphere, e.g. composition or pressure in a building chamber
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- 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
- B22F10/30—Process control
- B22F10/36—Process control of energy beam parameters
-
- 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
- B22F10/30—Process control
- B22F10/36—Process control of energy beam parameters
- B22F10/362—Process control of energy beam parameters for preheating
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- 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
- B22F10/30—Process control
- B22F10/38—Process control to achieve specific product aspects, e.g. surface smoothness, density, porosity or hollow structures
-
- 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
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
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- 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
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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
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- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Herstellung eines Formkörpers durch schichtweises Aufbauen aus pulverförmigem, metallischem Werkstoff, bei dem nacheinander mehrere Schichten übereinander aufgebracht werden, wobei jede Pulverschicht vor dem Aufbringen der nachfolgenden Schicht mit einem Hochenergiestrahl in einem vorgegebenen Bereich über ihrer gesamten Schichtdicke vollständig aufgeschmolzen wird.The The invention relates to a method for producing a shaped body by layered build up of powdered, metallic Material in which successively applied several layers one above the other with each powder layer before applying the following Layer with a high energy beam in a given area over their entire layer thickness completely melted becomes.
Ein
solches Verfahren, das auch als selektives Laser(strahl)schmelzen
bekannt ist, ist aus
Das selektive Laser(strahl)schmelzen unterscheidet sich von dem Prozess des selektiven Lasersinterns insbesondere dahingehend, dass bei dem letztgenannten Prozess das verwendete metallische Werkstoffpulver nicht vollständig aufgeschmolzen wird; vielmehr wird ein zweikomponentiges Metallpulver verwendet, das aus einer hochschmelzenden und einer niedrigschmelzenden Komponente besteht. Der Laserstrahl schmilzt die niedrigschmelzende Komponente auf, die als Bindematerial für die hochschmelzende Komponente dient. Es entsteht folglich eine metallische Matrix, wobei die Partikel der hochschmelzenden Komponente und der niedrigschmelzenden Komponente in einem Diffusionsprozess miteinander verbunden werden.The Selective laser (jet) melting differs from the process of selective laser sintering in particular in that the latter process, the metallic material powder used not completely melted; rather, it becomes one used two-component metal powder, which consists of a refractory and a low melting component. The laser beam melts the low melting point component used as the binding material for the refractory component is used. It therefore creates a metallic matrix, wherein the particles of the refractory component and the low-melting component in a diffusion process be connected to each other.
Der wesentliche Vorteil des selektiven Laser(strahl)schmelzens gegenüber dem selektiven Lasersintern ist, dass generativ Bauteile hergestellt werden können, die in ihrer Festigkeit und Dichte einem gegossenen Formteil annähernd entsprechen. Im Gegensatz dazu wird beim selektiven Lasersintern ein Formteil erzeugt, das aus einem relativ porösen Werkstoff besteht und das aufgrund der nur „klebenden" Verbindung der einzelnen Partikel untereinander lediglich eine geringe Festigkeit aufweist. Insbesondere aus diesem Grund wird das selektive Lasersintern nahezu ausschließlich zur Herstellung von Prototypen hergestellt, die keinen hohen mechanischen Belastungen ausgesetzt werden.Of the significant advantage of selective laser (jet) melting opposite the selective laser sintering is that generative components are produced which are cast in their strength and density Approximate shape match. In contrast, will produced during selective laser sintering a molding, which consists of a is relatively porous material and that due to the only "sticky" connection of the individual particles with each other only has a low strength. In particular from this Reason is the selective laser sintering almost exclusively manufactured for the production of prototypes that do not require high mechanical Be exposed to stress.
Durch
die homogene Werkstoffsstruktur der mittels des aus der
Ausgehend
von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde,
das aus der
Diese Aufgabe wird durch den Gegenstand des unabhängigen Patentanspruchs gelöst. Vorteilhafte Ausführungsformen sind Gegenstand der abhängigen Patentansprüche.These The object is achieved by the subject matter of the independent patent claim solved. Advantageous embodiments are the subject the dependent claims.
Der Kern der Erfindung sieht vor, bei einem Verfahren der eingangs genannten Art, bei dem zur Herstellung eines Formkörpers durch ein schichtweises Aufbauen aus pulverförmigem, metallischem Werkstoff nacheinander mehrere Schichten übereinander aufgebracht werden, wobei jede Pulverschicht vor dem Aufbringen der nachfolgenden Pulverschicht mit einem Hochenergiestrahl in einem vorgegebenen Bereich über der gesamten Schichtdicke vollständig aufgeschmolzen wird, den Werkstoff zur Erzielung definierter Kennwerte in Abschnitten des Formkörpers lokal metallurgisch zu beeinflussen. Durch die lokale metallurgische Beeinflussung können die Werkstoffeigenschaften an entsprechenden Abschnitten des Formkörpers definiert eingestellt werden, um diese beispielsweise durch eine lokale Erhöhung der Werkstofffestigkeit an eine erhöhte Belastung anzupassen.Of the Core of the invention provides, in a method of the aforementioned Art, in which for producing a shaped body by a layered build up of powdered, metallic material successively applied several layers one above the other with each powder layer before applying the following Powder layer with a high energy beam in a given range over the entire layer thickness is completely melted, the material for achieving defined characteristic values in sections of the shaped body to influence metallurgically locally. By the local metallurgical influence can change the material properties Defined at corresponding sections of the molding be adjusted to this by, for example, a local increase to adapt the material strength to an increased load.
Als Hochenergiestrahl kann vorzugsweise ein Laserstrahl zum Einsatz kommen, wobei jedoch jegliche Arten von Hochenergiestrahlen, wie beispielsweise auch ein Elektronenstrahl verwendet werden kann.As the high-energy beam, a laser beam may preferably be used, but uses any types of high-energy beams, such as an electron beam can be.
In einer bevorzugten Ausführungsform wird der Werkstoff lokal mittels einer Wärmeeinbringung nach dem Aufschmelzen beziehungsweise nach dem Verfestigen der Schmelze(nach)behandelt. Auf diese Weise kann eine lokale Vergütung des Werkstoffs erfolgen, mit dem Ziel beispielsweise die Härte, Zähigkeit oder Festigkeit des Werkstoffs gezielt zu beeinflussen. Ein weiterer wesentlicher Aspekt einer Wärmebeahndlung kann in der Vermeidung von Verzügen des Bauteils liegen; durch eine gezielte lokale Wärmebehandlung kann eine ungleichförmige Verteilung der Eigenspannungen im Bauteil, die insbesondere aus der lokal eingegrenzten thermischen Belastung beim Strahlschmelzen resultiert, reduziert bzw. durch Erzeugung von entgegen gesetzt gerichteten Eigenspannungen kompensiert werden.In In a preferred embodiment, the material becomes local by means of a heat input after melting or treated after solidification of the melt (after). In this way can be done a local compensation of the material, with For example, the hardness, toughness or To influence the strength of the material targeted. Another Essential aspect of a heat treatment can be avoided lie of distortion of the component; through a targeted local heat treatment can be a non-uniform distribution of residual stresses in the component, in particular from the localized thermal load results in beam melting, reduced or by generation be compensated by oppositely directed residual stresses.
Die Nachbehandlung mittels Wärmeeinbringung kann vorzugsweise mittels eines Infrarot-Strahlers (insbesondere für großflächige Anwendungen) oder auch einem nachlaufenden Hochenergiestrahl, insbesondere Laserstrahl (insbesondere bei hochschmelzenden Werkstoffen wie z. B. Wolfram) erfolgen.The Post-treatment by means of heat input can preferably by means of an infrared radiator (especially for large area Applications) or a trailing high-energy beam, in particular Laser beam (especially in high-melting materials such. B. tungsten).
Alternativ oder zusätzlich kann der Werkstoff dadurch lokal metallurgisch beeinflusst werden, dass der pulverförmige Werkstoff vorgewärmt wird. Die dadurch bewirkte Reduzierung der Temperaturdifferenz zwischen der Schmelze und dem übrigen Werkstoffpulver kann zu einer Reduzierung des Bauteilsverzugs führen. Ein Vorwärmen des pulverförmigen Werkstoffs ist zudem insbesondere dann vorteilhaft, wenn unterschiedliche Werkstoffe beim Strahlschmelzprozess zum Einsatz kommen, wobei diese Werkstoffe deutlich unterschiedliche Schmelztemperaturen aufweisen; in diesem Fall kann durch eine Vorwärmung des hochschmelzenden Werkstoffs die Menge der durch den Hochenergiestrahl einzubringenden Energie reduziert werden. Dadurch kann verhindert werden, dass es bereits zu einem unerwünschten Verdampfen des niedrigschmelzenden Werkstoffs kommt.alternative or in addition, the material can thereby locally metallurgical be influenced that preheated the powdery material becomes. The resulting reduction in the temperature difference between the melt and the remainder of the material powder can become a Reduce component distortion. A preheating the powdery material is also particularly then advantageous if different materials in the beam melting process be used, these materials are significantly different Have melting temperatures; in this case can by preheating of the refractory material the amount of the high energy beam be reduced to be introduced energy. This can be prevented that will already cause unwanted evaporation the low-melting material comes.
Eine weitere Möglichkeit zur lokalen metallurgischen Beeinflussung kann vorsehen, dass die Intensität und/oder der Durchmesser des Hochenergiestrahls verändert wird. Dadurch wird wiederum eine gezielte Beeinflussung der Aufheizung bzw. Abkühlung der einzelnen Abschnitte Abuteilabschnitte mit einer dadurch begründeten Veränderung der Werkstoffkennwerte beziehungsweise des Werkstoffverhaltens ermöglicht.A further possibility for local metallurgical influence can provide that intensity and / or diameter of the high energy beam is changed. This will turn a targeted influence on the heating or cooling the individual sections Abuteilabschnitte with a reasoned thereby Change in the material parameters or the Material behavior allows.
Eine weitere Möglichkeit zur lokalen metallurgischen Beeinflussung kann vorsehen, dass der Hochenergiestrahl wellenförmig oder kreisförmig (d. h. der Hochenergiestrahl wird in bestimmten Abständen in Bewegungsrichtung in einem kreisförmigen Bogen über einen bereits bearbeiteten Abschnitt des Bauteils geführt) verfahren wird. Dadurch kann insbesondere wiederum die Abkühlkurve und – durch das damit verbundene Schaffen gezielter Spannungszustände – die Werkstoffeigenschaften gezielt beeinflusst werden. Wird der Hochenergiestrahl hierbei über einen bereits erstartten Abschnitt des Bauteils geführt, kann auf diese Weise eine Reduzierung der Eigenspannung im Rahmen eines Anlassens des erstarten Werkstoffs dieses Abschnitts erreicht werden.A further possibility for local metallurgical influence can provide that the high energy beam wavy or circular (i.e., the high energy beam is in certain Distances in the direction of movement in a circular arc over guided an already processed section of the component) is moved. As a result, in turn, in particular, the cooling curve and - through the associated creation of specific states of tension - the Material properties are specifically influenced. Will the high energy beam in this case over an already staged section of the component led, this way can reduce the residual stress as part of a start of the staged material of this section be achieved.
Eine weitere, bevorzugte Möglichkeit zur lokalen metallurgischen Beeinflussung kann vorsehen, dass der Werkstoff lokal gekühlt wird. Das Kühlen kann – je nach angestrebtem Erfolg der lokalen metallurgischen Beeinflussung – sowohl vor dem Aufschmelzen als auch danach erfolgen.A further, preferred way to local metallurgical Influencing may provide that the material is cooled locally becomes. The cooling can - depending on the desired success the local metallurgical influence - both before the melting and then done.
In einer weiterhin bevorzugten Ausführungsform der vorliegenden Erfindung kann vorgesehen sein, eine Schutzgasatmosphäre, unter der der Herstellungsprozess abläuft, gezielt während des Herstellungsprozesses zu verändern. Beispielsweise kann durch ein definiertes Mischungsverhältnis von Helium und Argon als Schutzgase die Tiefe des Schmelzkegels, d. h. die Tiefe bis zu der eine oder mehrere unter der Pulverschicht liegende, erstarrte Schichten durch den Hochenergiestrahl wieder aufgeschmolzen werden, beeinflusst werden. Dies liegt in den unterschiedlichen Wärmeleitfähigkeiten bei hohen Temperaturen dieser Gase begründet, so dass bei dem Auftreffen des Hochenergiestrahls unterschiedliche Wärmekonzentrationen erzeugt werden.In a further preferred embodiment of the present invention Invention can be provided, a protective gas atmosphere, under which the manufacturing process runs, targeted during of the manufacturing process. For example, can by a defined mixing ratio of helium and Argon as shielding gases the depth of the melting cone, d. H. the depth to the one or more underlying the powder layer, solidified layers be remelted by the high energy beam, influenced become. This is due to the different thermal conductivities justified at high temperatures of these gases, so that at the impact of the high energy beam different heat concentrations be generated.
In einer weiterhin bevorzugten Ausführungsform der vorliegenden Erfindung kann vorsehen sein, den verwendeten Werkstoff während des Herstellungsprozesses zu ändern und/oder den Ausgangswerkstoff durch Hinzufügen eines Zusatzwerkstoff zu verändern. Beispielsweise kann durch ein Hinzufügen von Niob ein feinkörnigeres Gefüge des Bauteilwerkstoffs erzeugt werden, wodurch sich die Festigkeit des Bauteils erhöht. Das erfindungsgemäße Verfahren ermöglicht, diese Festigkeitssteigerung, die gleichzeitig mit einer Erhöhung der Dichte und damit des Bauteilgewichts einhergeht, lokal auf die Bereiche zu beschränken, an denen eine solche Festigkeitssteigerung notwendig ist.In a further preferred embodiment of the present invention Invention may provide for the material used during to change the manufacturing process and / or the starting material by adding a filler material change. For example, by adding niobium, a finer-grained Structure of the component material can be generated, resulting in increases the strength of the component. The invention Procedure allows this increase in strength at the same time with an increase in the density and thus the weight of the component goes hand in hand with restricting locally to the areas where such an increase in strength is necessary.
Die Erfindung wird nachfolgend anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels näher erläutert.The Invention is described below with reference to an illustrated in the drawings Embodiment explained in more detail.
In den Zeichnungen zeigt:In the drawings shows:
In
der
Bei
dem in der
Weiterhin
sind an der Oberseite des Bauteils Bohrlöcher
Das
Motorträgerelement der
Die
Eine
Möglichkeit zur Erzeilung des Temperaturverlaufs der
Weitere Beispiele zur erfindungsgemäß gezielten Veränderung der Werkstoff- und/oder Bauteileigenschaften sind im folgenden angegeben.Further Examples of the invention targeted change the material and / or component properties are given below.
Eine hohe Maßhaltigkeit des Bauteils (d. h. eine Vermeidung von Verzügen) kann beispielsweise erreicht werden durch ein Nacherwärmen (z. B. mittels Infrarot und/oder Hochenergiestrahlung), durch ein Vorerwärmen des Pulvers (Austreiben von Wasser und Wasserstoff und dadurch Erhöhung der Fließfähigkeit des Pulvers), durch eine Veränderung der Laserintensität, durch eine kreisförmige Bewegung des Laserstrahls, durch ein lokales Kühlen.A high dimensional stability of the component (ie avoidance) of delays) can be achieved for example by reheating (eg by means of infrared and / or high-energy radiation), by preheating the powder (expelling water and hydrogen, thereby increasing flowability of the powder), by a change in the laser intensity, by a circular motion of the laser beam, through a local cooling.
Die Prozessgeschwindigkeit kann durch ein Nacherwärmen des Werkstoffs (z. B. mittels Infrarot und/oder Hochenergiestrahlung) beschleunigt werden.The Process speed can be achieved by reheating the Material (eg by means of infrared and / or high-energy radiation) be accelerated.
Die lokalen Spannungen im Bauteil können gezielt beeinflusst werden durch ein Nacherwärmen (z. B. mittels Infrarot und/oder Hochenergiestrahlung), durch eine Veränderung der Laserintensität, durch eine kreisförmige Bewegung des Laserstrahls, durch ein lokales Kühlen, durch eine Veränderung der Schutzgasatmosphäre (z. B. Helium statt Argon) und/oder durch ein Hinzufügen eines Zusatzwerkstoffs (z. B. mit einer Lanze).The Local stresses in the component can be specifically influenced be by a reheating (eg., By means of infrared and / or High-energy radiation), by a change in the laser intensity, through a circular movement of the laser beam, through a local cooling, by a change in the inert gas atmosphere (eg, helium instead of argon) and / or by adding an additional material (eg with a lance).
Eine gezielte Verdichtung des Gefüges kann erreicht werden durch ein Nacherwärmen (z. B. mittels Infrarot und/oder Hochenergiestrahlung), durch ein Vorerwärmen des Pulvers (Austreiben von Wasser und Wasserstoff und dadurch Erhöhung der Fließfähigkeit des Pulvers), durch eine Veränderung der Laserintensität, durch eine Veränderung der Schutzgasatmosphäre (z. B. Helium statt Argon) und/oder durch ein Hinzufügen eines Zusatzwerkstoffs (z. B. mit einer Lanze).A targeted densification of the structure can be achieved by reheating (eg with infrared and / or high-energy radiation), by preheating the powder (expelling water and hydrogen and thereby increasing the flowability of the powder), by changing the laser intensity, by changing the inert gas atmosphere (eg helium instead of argon) and / or by adding a filler material (eg with a lance).
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 19649865 C1 [0002, 0005, 0006, 0023, 0023] - DE 19649865 C1 [0002, 0005, 0006, 0023, 0023]
Claims (11)
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DE102007059865A DE102007059865A1 (en) | 2007-12-12 | 2007-12-12 | Producing a mold body by structuring powder forming metallic material in layered manner, comprises subjecting layers one upon the other and melting each powder layer before bringing the powder layer with a wave like high energy radiation |
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DE102007059865A DE102007059865A1 (en) | 2007-12-12 | 2007-12-12 | Producing a mold body by structuring powder forming metallic material in layered manner, comprises subjecting layers one upon the other and melting each powder layer before bringing the powder layer with a wave like high energy radiation |
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DE102010050531A1 (en) | 2010-09-08 | 2012-03-08 | Mtu Aero Engines Gmbh | Generatively producing portion of component, which is constructed from individual powder layers, comprises heating powder layer locally on melting temperature, forming molten bath, reheating zone downstream to the molten bath |
DE102010048335A1 (en) | 2010-10-13 | 2012-04-19 | Mtu Aero Engines Gmbh | Method for production of portion of component e.g. turbine blade composed of individual powder layers, involves applying high energy beam to molten bath from downstream direction of post-heating zone, to reheat the molten bath |
CN102784915A (en) * | 2011-05-18 | 2012-11-21 | 曼卡车和巴士股份公司 | Process for producing metallic components |
WO2013127655A1 (en) | 2012-02-27 | 2013-09-06 | Compagnie Generale Des Etablissements Michelin | Method and apparatus for producing three-dimensional objects with improved properties |
DE102012013318A1 (en) * | 2012-07-06 | 2014-01-09 | Eos Gmbh Electro Optical Systems | Method and device for layering a three-dimensional object |
DE102012025140A1 (en) * | 2012-12-21 | 2014-06-26 | Eads Deutschland Gmbh | Friction stir tool, manufacturing method thereof and friction stir process |
DE102013205956A1 (en) * | 2013-04-04 | 2014-10-30 | MTU Aero Engines AG | Blisk with titanium aluminide blades and method of manufacture |
EP3006139A1 (en) * | 2014-10-09 | 2016-04-13 | Linde Aktiengesellschaft | Method for layered production of a metallic workpiece by means of laser assisted additive manufacturing |
EP2782705B1 (en) | 2011-11-22 | 2017-09-13 | MTU Aero Engines GmbH | Method of generative producing a component using a laser beam before, during and after the assembly |
EP3305444A1 (en) * | 2016-10-08 | 2018-04-11 | Ansaldo Energia IP UK Limited | Method for manufacturing a mechanical component |
EP3459656A1 (en) * | 2017-09-21 | 2019-03-27 | Siemens Aktiengesellschaft | Method and device for additive production of a component |
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