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1. WO2022112038 - METHOD FOR PRODUCING A MATERIAL LAYER WITH AT LEAST ONE VOID

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Publication Number WO/2022/112038
Publication Date 02.06.2022
International Application No. PCT/EP2021/081690
International Filing Date 15.11.2021
IPC
H01F 41/16 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
41Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
14for applying magnetic films to substrates
16the magnetic material being applied in the form of particles, e.g. by serigraphy
H01F 41/02 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
41Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
02for manufacturing cores, coils or magnets
H02K 15/02 2006.1
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
15Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
02of stator or rotor bodies
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
CPC
B22F 2998/10
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
2998Supplementary information concerning processes or compositions relating to powder metallurgy
10Processes characterised by the sequence of their steps
B22F 2999/00
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
2999Aspects linked to processes or compositions used in powder metallurgy
B22F 5/106
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
5Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
10of articles with cavities or holes, not otherwise provided for in the preceding subgroups
106Tube or ring forms
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
H01F 41/0233
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
41Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
02for manufacturing cores, coils, or magnets
0206Manufacturing of magnetic cores by mechanical means
0233Manufacturing of magnetic circuits made from sheets
H01F 41/16
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
41Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
14for applying magnetic films to substrates
16the magnetic material being applied in the form of particles, e.g. by serigraphy ; , to form thick magnetic films or precursors therefor;
Applicants
  • SIEMENS AKTIENGESELLSCHAFT [DE]/[DE]
Inventors
  • SCHUH, Carsten
  • SOLLER, Thomas
  • VOLLMER, Rolf
Priority Data
20209854.725.11.2020EP
Publication Language German (de)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN ZUR HERSTELLUNG EINER MATERIALLAGE MIT ZUMINDEST EINER AUSSPARUNG
(EN) METHOD FOR PRODUCING A MATERIAL LAYER WITH AT LEAST ONE VOID
(FR) PROCÉDÉ POUR PRODUIRE UNE COUCHE DE MATÉRIAU AVEC AU MOINS UN ÉVIDEMENT
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Abstract
(DE) Die Erfindung betrifft ein Verfahren zur Herstellung einer Materiallage (16) mit zumindest einer Aussparung (32) aus einem Grünkörper (52). Um, im Vergleich zum Stand der Technik, eine bessere Kostenposition zu erreichen, wird vorgeschlagen, dass das Herstellungsverfahren folgende Schritte umfasst: Aufbringen (34) einer ersten Suspension (36), welche zumindest ein Bindemittel enthält, durch eine erste Ausnehmung (38) einer ersten Schablone (40), Aufbringen (44) einer zweiten Suspension (46), welche ein Bindemittel und Feststoffteilchen aus einem zweiten Werkstoff enthält, durch eine zweite Ausnehmung (48) einer zweiten Schablone (50), wobei die erste Ausnehmung (38) der ersten Schablone (40) vollständig in der zweiten Ausnehmung (48) der zweiten Schablone (50) enthalten ist, sodass die zweite Suspension (46) die erste Suspension (36) vollständig umgibt, Sintern (54) des die Suspensionen (36, 46) enthaltenden Grünkörpers (52), wobei durch den Sintervorgang die erste Suspension (36) zur Bereitstellung der Aussparung (32) verflüchtigt wird und ein dauerhafter Zusammenhalt der Feststoffteilchen der zweiten Suspension (46) geschaffen wird.
(EN) The invention relates to a method for producing a material layer (16) with at least one void (32) from a green body (52). In order to achieve a better cost position in comparison with the prior art, it is proposed that the production method comprises the following steps: applying (34) a first suspension (36), which contains at least one binder, through a first opening (38) in a first template (40); applying (44) a second suspension (46), which contains a binder and solid particles made of a second material, through a second opening (48) in a second template (50), the first opening (38) in the first template (40) being completely contained in the second opening (48) in the second template (50) so that the second suspension (46) completely surrounds the first suspension (36); sintering (54) the green body (52) containing the suspensions (36, 46), wherein, by means of the sintering process, the first suspension (36) is evaporated to provide the void (32) and permanent cohesion of the solid particles of the second suspension (46) is achieved.
(FR) L'invention concerne un procédé pour produire une couche de matériau (10) avec au moins un évidement (32) à partir d'un corps cru (52). L’objectif de cette invention est d'obtenir de meilleurs niveaux de coûts en comparaison avec l'état de la technique. À cet effet, le procédé de production comprend les étapes qui consistent à : appliquer (34) une première suspension (36) qui contient au moins un liant à travers une première ouverture (38) dans un premier gabarit (40) ; appliquer (44) une deuxième suspension (46) qui contient un liant et des particules solides composées d'un deuxième matériau à travers une deuxième ouverture (48) dans un deuxième gabarit (50), la première ouverture (38) dans le premier gabarit (40) étant entièrement contenue dans la deuxième ouverture (48) dans le deuxième gabarit (50), de façon que la deuxième suspension (46) entoure entièrement la première suspension (36) ; fritter (54) le corps cru (52) contenant les suspensions (36, 46), le processus de frittage permettant que la première suspension (36) s'évapore pour fournir l'évidement (32) et assurant une cohésion permanente des particules solides de la deuxième suspension (46).
Related patent documents
EP4006932
Latest bibliographic data on file with the International Bureau
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