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1. US20200391324 - METHOD FOR THE ADDITIVE CONSTRUCTION OF A STRUCTURE AND COMPUTER PROGRAM PRODUCT

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

Claims

1. A method for the additive construction of a structure for a component, the method comprising:
providing a prefabricated part for the component on a construction plate, the part comprising a separating plane,
providing a powder bed consisting of a base material for the structure,
approaching the construction plate to a coating device,
orientating a processing face and the separating plane of the part in order to prevent a collision between the part and the coating device, and
optically measuring a surface O of the powder bed.
2. The method as claimed in claim 1,
wherein the surface is measured during the coating of the processing face with the base material by the coating device.
3. The method as claimed in claim 1,
wherein the surface is optically measured layer-by-layer during the additive construction of the structure.
4. The method as claimed in claim 1,
wherein an angle (α) between the processing face and the separating plane is determined for the orientation.
5. The method as claimed in claim 4,
wherein the angle is determined by the optical measurement of a portion, protruding from the processing face, of the part.
6. The method as claimed in claim 1,
wherein the approaching of the construction plate is carried out by a photoelectric barrier, and the construction plate is raised stepwise until the photoelectric barrier is broken.
7. The method as claimed in claim 1,
wherein a code in the separating plane of the part is optically identified during the measurement, and wherein the code contains information about a geometry and/or an orientation of the part.
8. The method as claimed in claim 1,
wherein the construction plate is nonplanar and the processing face is defined as a result of a best-fit calculation.
9. A method for the additive construction of a structure for a component, the method comprising:
fixing a prefabricated part for the component in a fixing device in such a way that a separating plane of the part is orientated parallel to a reference surface of a carrier guided in the fixing device,
recording an angle (α) between a processing face and the separating plane, and
providing a powder bed consisting of a base material for the structure,
additively constructing the structure on the processing face, in order to orientate the processing face, relative to the separating plane of the part, the angle (α) being recorded either by a measurement or by reading a code and being taken into account for the additive construction.
10. The method as claimed in claim 9,
wherein the carrier is standardized and is provided with a machine-readable code, and wherein the code is readable by the device.
11. The method as claimed in claim 9,
wherein the fixing device is transparent on the side facing away from the carrier.
12. The method as claimed in claim 9,
wherein the part is fixed in the fixing device by a filler material.
13. The method as claimed in claim 9,
wherein the angle (α) is measured by a camera, by the carrier being rotated through 360° and the smallest angle (α) between the part and the camera furthermore being stored.
14. A non-transitory computer program product comprising:
computer readable instructions which, when executed by a computer, implement the method of claim 1, and
cause the computer to read information about the relative position of the separating plane of the part into the computer and,
by a CAM method, to newly carry out layer subdivision of the structure and/or establishment of irradiation parameters.
15. A measuring device which is coupled to a coating device for coating a processing face for the additive construction of a structure according to claim 1,
wherein the measuring device is furthermore configured for layer-by-layer optical measurement of the surface.
16. A fixing device for the additive construction of a structure according to claim 9, the fixing device comprising:
a carrier, and
a guide configured for linear guiding of the carrier,
wherein the carrier is standardized and is provided with a machine-readable code, a QR code, and/or an RFID code.