# US 10,479,010 B2 · Metal product having internal space formed therein and method of manufacturing thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,479,010 B2 - Document ID: US10479010B2 - Status: Granted - Kind: B2 - Application number: 15/455,541 - Filed: 2017-03-10 - Published: 2017-08-10 - Granted: 2019-11-19 - Earliest claimed: 2011-04-28 - Assignees: Insstek, Inc. - Applicants: Insstek, Inc. - Inventors: Jeong-Hun Suh - Web page: https://patentgrep.com/patent/US10479010B2 ## CPC - B29C 45/7312: {Construction of heating or cooling fluid flow channels} - B21D 37/20: Making tools by operations not covered by a single other subclass - B22F 5/10: of articles with cavities or holes, not otherwise provided for in the preceding subgroups - B22F 10/25: Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS] - B22F 10/28: Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM] - B22F 10/385: {Overhang structures} - B22F 12/20: Cooling means - B23P 15/007: {injection moulding tools} - B23P 17/00: Metal-working operations, not covered by a single other subclass or another group in this subclass - B29C 33/3842: {Manufacturing moulds, e.g. shaping the mould surface by machining} - B33Y 10/00: Processes of additive manufacturing - B33Y 80/00: Products made by additive manufacturing - Y02P 10/25: Process efficiency - Y10T 29/49826: Assembling or joining - Y10T 428/12: All metal or with adjacent metals - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B21D: WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL (working or processing of wire B21F) - 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 - B23P: METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS (arrangements for copying or controlling B23Q) - 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 - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract There is provided a metal product having an internal space formed therein, allowing for improvements in the flow of a coolant in the internal space, such as a cooling channel and an increase in cooling efficiency, and a method of manufacturing thereof. The metal product includes a body part having a first space formed therein; a space formation member having a second space formed therein, mounted on the body part to be communicated with the first space; and a finishing part forming an exterior by covering the space formation member in a state in which the space formation member is mounted on the body part. ## Claims ### Claim 1 A metal product having an internal space formed therein, the metal product comprising: a body part having a first space formed therein; a space formation member having a second space formed therein, mounted on the body part to be communicated with the first space of body part to form the internal space therein; and a finishing part forming an exterior by covering the space formation member in a state in which the space formation member is mounted on the body part; wherein the body part includes a mounting groove having the space formation member mounted therein, and the space formation member has only a part thereof mounted in the mounting groove and a remaining part thereof exposed outwardly of the body part, wherein the body part and the finishing part form an exterior of the metal product, the space formation member is not exposed to an external surface of the body part and the finishing part, and the finishing part is built up to be metallically bonded to the body part and the space formation member. ### Claim 2 (depends on 1) The metal product of claim 1, wherein the space formation member is made as a single member having the second space formed therein. ### Claim 3 (depends on 1) The metal product of claim 1, wherein the space formation member is formed by coupling two or more separation members, and has the second space formed therein by the coupling of the more than two separation members. ### Claim 4 (depends on 1) The metal product of claim 1, wherein the space formation member has the second space formed in a lower portion thereof in communication with the first space of body part to form the internal space, to thereby form an overhang structure having an empty space formed therebelow. ### Claim 5 (depends on 1) The metal product of claim 1, wherein the metal product is a mold or a variety of metal products requiring cooling, the space formation member is made of a metallic material, and the first space and the second space are a cooling channel. ### Claim 6 (depends on 5) The metal product of claim 5, wherein the space formation member forms a curvature portion in which a direction of the cooling channel is altered, or an overhang portion having an empty space formed in a lower side in the cooling channel. ### Claim 7 (depends on 1) The metal product of claim 1, wherein the space formation member is made of a material identical to that of the body part or a material having corrosion resistance higher than the body part. ### Claim 8 (depends on 1) The metal product of claim 1, wherein the finishing part is formed by at least one of a direct metal fabrication (DMF) technique, a multilayer laser cladding technique, a selective laser sintering (SLS) technique, and a selective laser melting (SLM) technique. ### Claim 9 A metal product having an internal space formed therein, the metal product comprising: a body part having a first space formed therein; a space formation member having a second space formed therein, mounted on the body part to be communicated with the first space of body part to form the internal space therein; and a finishing part forming an exterior by covering the space formation member in a state in which the space formation member is mounted on the body part; wherein the body part includes a mounting groove having the space formation member mounted therein, and the space formation member is not exposed outwardly of the mounting groove, wherein the body part and the finishing part form an exterior of the metal product, the space formation member is not exposed to an external surface of the body part and the finishing part, and the finishing part is built up to be metallically bonded to the body part and the space formation member. ### Claim 10 (depends on 9) The metal product of claim 9, wherein the space formation member is made as a single member having the second space formed therein. ### Claim 11 (depends on 9) The metal product of claim 9, wherein the space formation member is formed by coupling two or more separation members, and has the second space formed therein by the coupling of the more than two separation members. ### Claim 12 (depends on 9) The metal product of claim 9, wherein the space formation member has the second space formed in a lower portion thereof in communication with the first space of body part to form the internal space, to thereby form an overhang structure having an empty space formed therebelow. ### Claim 13 (depends on 9) The metal product of claim 9, wherein the metal product is a mold or a variety of metal products requiring cooling, the space formation member is made of a metallic material, and the first space and the second space are a cooling channel. ### Claim 14 (depends on 13) The metal product of claim 13, wherein the space formation member forms a curvature portion in which a direction of the cooling channel is altered, or an overhang portion having an empty space formed in a lower side in the cooling channel. ### Claim 15 (depends on 9) The metal product of claim 9, wherein the space formation member is made of a material identical to that of the body part or a material having corrosion resistance higher than the body part. ### Claim 16 (depends on 9) The metal product of claim 9, wherein the finishing part is formed by at least one of a direct metal fabrication (DMF) technique, a multilayer laser cladding technique, a selective laser sintering (SLS) technique and a selective laser melting (SLM) technique.