# US 10,864,714 B2 · Method and device for additively producing components > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,864,714 B2 - Document ID: US10864714B2 - Status: Granted - Kind: B2 - Application number: 15/547,881 - Filed: 2016-01-29 - Published: 2018-01-18 - Granted: 2020-12-15 - Earliest claimed: 2015-02-02 - Assignees: GKN Sinter Metals Engineering GmbH - Applicants: GKN Sinter Metals Engineering GmbH - Inventors: Rainer Schmitt; Simon Höges; Ümit Aydin; Richard Kallee; Peter Mölgg - Web page: https://patentgrep.com/patent/US10864714B2 ## CPC - B22F 3/003: {Apparatus, e.g. furnaces (in general F27B)} - B22F 3/11: Making porous workpieces or articles - B22F 3/16: in successive or repeated steps - B22F 3/164: {Partial deformation or calibration} - B22F 10/28: Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM] - B32B 1/00: Layered products having a non-planar shape - B33Y 10/00: Processes of additive manufacturing - B33Y 30/00: Apparatus for additive manufacturing; Details thereof or accessories therefor - B33Y 50/02: for controlling or regulating additive manufacturing processes - B33Y 80/00: Products made by additive manufacturing - B22F 10/34: of powder characteristics, e.g. density, oxidation or flowability - B22F 10/37: of powder bed aspects, e.g. density - B22F 12/30: Platforms or substrates - B22F 2202/01: Use of vibrations - B22F 2203/00: Controlling - B22F 2203/03: for feed-back - B22F 2207/17: density or porosity gradients - B22F 2999/00: Aspects linked to processes or compositions used in powder metallurgy - Y02P 10/25: Process efficiency - B22F: WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER (making alloys by powder metallurgy C22C); APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - 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 - Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS ## Abstract The invention relates to a method for producing a body by means of an additive production method (AM) by using metal powder, comprising the following steps: designing the body in a computer-simulated manner while taking into account at least one region of the body to be processed and transferring data to an additive production device, in particular an additive powder-bed production device, successively providing the metal powder in order to construct powder layers arranged one on the other, successively hardening parts of the powder layers in order to form at least one specified structure in the powder layers arranged one on the other, wherein the structure is at least partially filled with metal powder of the powder layers, and calibrating a body, which is created by means of the structure, in the region to be processed. The invention further relates to a corresponding device, to a body produced in such a way, and to a computer program product for performing the method. ## Claims ### Claim 1 A method for producing a body by an additive manufacturing (AM) method by using metallic powder, the method comprising the following steps: computer-simulated design of the body while taking into account at least one region of the body to be processed and transferring data to an additive manufacturing device, successive providing of the metallic powder in order to construct powder layers arranged one on the other, successive hardening of parts of the powder layers in order to form at least one specified structure in the powder layers arranged one on the other, wherein the structure is at least partly filled with metallic powder of the powder layers, and calibrating a body, which is created by the structure, in the region to be processed. ### Claim 2 (depends on 1) The method as claimed in claim 1, wherein the powder is repeatedly compacted during the additive manufacturing method. ### Claim 3 (depends on 1) The method as claimed in claim 1, wherein the powder of individual powder layers is mechanically compacted. ### Claim 4 (depends on 1) The method as claimed in claim 1, wherein the powder is shaken for the compacting. ### Claim 5 (depends on 1) A method as claimed in claim 1, for producing a body by an additive manufacturing (AM) method by using metallic powder, the method comprising the following steps: computer-simulated design of the body while taking into account at least one region of the body to be processed and transferring data to an additive manufacturing device, successive providing of the metallic powder in order to construct powder layers arranged one on the other, excitation of the metallic powder by vibration, successive hardening of parts of the powder layers in order to form at least one specified structure in the powder layers arranged one on the other, wherein the structure is at least partly filled with metallic powder of the powder layers. ### Claim 6 (depends on 1) The method as claimed in claim 1, wherein a base plate of a manufacturing layout of the additive manufacturing method, a powder layer, and/or a part of a device for the supplying of powder for the powder deposition of the manufacturing layout is excited by vibrations. ### Claim 7 (depends on 1) The method as claimed in claim 1, wherein the hardening of parts of the powder layers results in a closed structure in which the powder remains intact. ### Claim 8 (depends on 1) The method as claimed in claim 1, wherein the body has a wall structure which has a lesser porosity in an inner region of the wall structure than an outer region of the wall structure, wherein the inner region is given an at least approximately 100% density and the outer region of the wall structure remains porous. ### Claim 9 (depends on 1) The method as claimed in claim 1, wherein a sintering of the at least one structure and the powder from the powder layers which is retained in the structure during the sintering occurs in a sintering furnace to form the body, wherein the powder remaining in the structure neighboring the region of the body to be processed is heated during the sintering to a temperature at which sinter necks form on powder grains of the powder and brace the region of the body to be processed.