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1. WO2022111973 - METHOD FOR PRODUCING AN OBJECT LAYER BY LAYER

Publication Number WO/2022/111973
Publication Date 02.06.2022
International Application No. PCT/EP2021/080750
International Filing Date 05.11.2021
IPC
B22F 10/28 2021.1
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
10Additive manufacturing of workpieces or articles from metallic powder
20Direct sintering or melting
28Powder bed fusion, e.g. selective laser melting or electron beam melting
B22F 10/366 2021.1
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
10Additive manufacturing of workpieces or articles from metallic powder
30Process control
36of energy beam parameters
366Scanning parameters, e.g. hatch distance or scanning strategy
B29C 64/153 2017.1
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
64Additive manufacturing, i.e. manufacturing of three-dimensional objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
10Processes of additive manufacturing
141using only solid materials
153using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/393 2017.1
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
64Additive manufacturing, i.e. manufacturing of three-dimensional objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
30Auxiliary operations or equipment
386Data acquisition or data processing for additive manufacturing
393for controlling or regulating additive manufacturing processes
B33Y 10/00 2015.1
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
10Processes of additive manufacturing
B33Y 50/02 2015.1
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
50Data acquisition or data processing for additive manufacturing
02for controlling or regulating additive manufacturing processes
CPC
B22F 10/28
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
10Additive manufacturing of workpieces or articles from metallic powder
20Direct sintering or melting
28Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B22F 10/366
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
10Additive manufacturing of workpieces or articles from metallic powder
30Process control
36of energy beam parameters
366Scanning parameters, e.g. hatch distance or scanning strategy
B29C 64/153
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
64Additive 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
10Processes of additive manufacturing
141using only solid materials
153using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/393
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
64Additive 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
30Auxiliary operations or equipment
386Data acquisition or data processing for additive manufacturing
393for controlling or regulating additive manufacturing processes
B33Y 10/00
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
10Processes of additive manufacturing
B33Y 50/02
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
50Data acquisition or data processing for additive manufacturing
02for controlling or regulating additive manufacturing processes
Applicants
  • SIEMENS AKTIENGESELLSCHAFT [DE]/[DE]
Inventors
  • HEINRICHSDORFF, Frank
  • KASTSIAN, Darya
  • REZNIK, Daniel
Priority Data
20210014.526.11.2020EP
Publication Language German (de)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN ZUM SCHICHTWEISEN HERSTELLEN EINES OBJEKTS
(EN) METHOD FOR PRODUCING AN OBJECT LAYER BY LAYER
(FR) PROCÉDÉ DE PRODUCTION D'UN OBJET COUCHE PAR COUCHE
Abstract
(DE) Die Erfindung betrifft ein Verfahren zum schichtweisen Herstellen eines Objekts mit einem pulverbasierten 3D-Druckverfahren durch selektives Verfestigen von Schichten (n, n+1,n+2) eines Pulvers in einem Pulverbett (100) mittels eines selektiven Laserschmelz- oder selektiven Elektronen- strahlschmelz-Prozesses. Um lokalen Überhitzungen bei selektiven, pulverbasierten 3D-Druckverfahren, vorzubeugen werden jeweils zumindest zwei aufeinanderfolgende Schichten (n, n+1,n+2) zu einer Gruppe (G1, G2) zusammengefasst. Das Verfahren umfasst weiterhin für jede der Gruppen (G1, G2) die folgenden Schritte: - Bereitstellen einer ersten Schicht (n) des Pulvers, - Verfestigen zumindest eines Teils der ersten Schicht (n) mit ersten Belichtungsvektoren (Vn), die zueinander parallel und in einem definierbaren Abstand (h) zueinander angeordnet sind, - Bereitstellen einer zweiten Schicht (n+1) Pulver, - Verfestigen zumindest eines Teils der zweiten Schicht (n+1) mit zweiten Belichtungsvektoren (Vn+1), die um einen Versatz (x1, x2) parallel bezüglich der ersten Belichtungsvektoren (Vn) angeordnet sind, 25 wobei die Belichtungsvektoren (Vn, Vn+1, Vn+2) von aufeinanderfolgenden Gruppen (G1, G2) um einen Winkel (α) zueinander rotiert sind.
(EN) The invention relates to a method for producing an object layer by layer using a powder-based 3D printing method by selective fusing of layers (n, n+1, n+2) of a powder in a powder bed (100) by means of a selective laser melting process or selective electron beam melting process. To avoid local overheating in selective, powder-based 3D printing methods, at least two successive layers (n, n+1, n+2) are combined to form a group (G1, G2) in each case. The method also comprises the following steps for each of the groups (G1, G2): - providing a first layer (n) of the powder, - fusing at least one part of the first layer (n) with first exposure vectors (Vn), which are arranged parallel to one another and at a definable distance (h) from one another, - providing a second layer (n+1) of powder, - fusing at least one part of the second layer (n+1) with second exposure vectors (Vn+1), which are arranged at an offset (x1, x2) parallel to the first exposure vectors (Vn), wherein the exposure vectors (Vn, Vn+1, Vn+2) of successive groups (G1, G2) are rotated by an angle (α) to one another.
(FR) L'invention concerne un procédé de production d'un objet couche par couche au moyen d'un procédé d'impression 3D à base de poudre par fusion sélective de couches (n, n + 1, n + 2) d'une poudre dans un lit de poudre (100) au moyen d'un procédé de fusion sélective au laser ou d'un procédé de fusion sélective par faisceau d'électrons. Pour éviter une surchauffe locale dans les procédés d'impression 3D sélectifs à base de poudre, au moins deux couches successives (n, n + 1, n + 2) sont combinées pour former un groupe (G1. G2) dans chaque cas. Le procédé comprend également les étapes suivantes pour chacun des groupes (G1, G2), consistant à : - fournir une première couche (n) de la poudre, - faire fondre au moins une partie de la première couche (n) à l'aide de premiers vecteurs d'exposition (Vn) qui sont agencés parallèlement les uns aux autres et à une distance pouvant être définie (h) les uns des autres, - fournir une deuxième couche (n + 1) de poudre, - faire fondre au moins une partie de la deuxième couche (n + 1) à l'aide de deuxièmes vecteurs d'exposition (Vn + 1), qui sont agencés selon un décalage (x1, x2) parallèlement aux premiers vecteurs d'exposition (Vn), les vecteurs d'exposition (Vn, Vn + 1, Vn + 2) de groupes successifs (G1, G2) étant tournés d'un angle (α) les uns par rapport aux autres.
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EP2021805948This application is not viewable in PATENTSCOPE because the national phase entry has not been published yet or the national entry is issued from a country that does not share data with WIPO or there is a formatting issue or an unavailability of the application.
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