Method, data processing device, and machine tool for generating dimensional tool paths and control signals for material dispositioning

{
  "publication_number": "US10889098B2",
  "country": "US",
  "kind": "B2",
  "title": "Method, data processing device, and machine tool for generating dimensional tool paths and control signals for material dispositioning",
  "abstract": "A method for generating control data is a method for generating control data for manufacturing a product having a designated shape using an additive manufacturing technology. The control data includes a path of a nozzle for supplying a material. The method for generating the control data includes: determining a cutting path for cutting the designated shape by a tool; and determining the path of the nozzle by reproducing the cutting path temporally reversely.",
  "claims": [
    "1. A method for generating control data for manufacturing a product having a designated shape using an additive manufacturing technology, the control data including a path of a nozzle for supplying a material, the method for generating the control data comprising: generating shape data of the designated shape to form a virtual stock corresponding to the product; determining a cutting path for a virtual cutting of the virtual stock having the designated shape by a tool until the virtual stock is finally formed into only chips; calculating an amount of the chips removed from the virtual stock by the virtual cutting along the cutting path by determining an amount of an overlapped range between the tool and the virtual stock; determining the path of the nozzle for implementing the additive manufacturing technology along the path of the nozzle based on the cutting path by temporally reversely reproducing the cutting path; and determining at least one of a motion speed of the nozzle, an amount of supply of the material, and an output of laser emitted to the material based on the amount of the chips removed from the virtual stock.",
    "2. The method for generating the control data according to claim 1, wherein in determining the path of the nozzle, the path of the nozzle is determined such that a position irradiated with the laser coincides with a position of an edge of the tool in the cutting path.",
    "3. The method for generating the control data according to claim 1, wherein the cutting path is generated using CAM (Computer Aided Manufacturing), and the path of the nozzle is determined using a program incorporated in the CAM.",
    "4. The method for generating the control data according to claim 1, wherein the designated shape is columnar.",
    "5. An data processing device for generating control data for manufacturing a product having a designated shape using an additive manufacturing technology, the control data including a path of a nozzle for supplying a material, the data processing device comprising: a generating unit configured to generate shape data of the designated shape to form a virtual stock corresponding to the product; a first determination unit configured to determine a cutting path for a virtual cutting of the virtual stock having the designated shape by a tool until the virtual stock is finally formed into only chips; a calculating unit configured to calculate an amount of the chips removed from the virtual stock by the virtual cutting along the cutting path by determining an amount of an overlapped range between the tool and the virtual stock; a second determination unit configured to determine the path of the nozzle for implementing the additive manufacturing technology along the path of the nozzle based on the cutting path by temporally reversely reproducing the cutting path; and a third determination unit configured to determine at least one of a motion speed of the nozzle, an amount of supply of the material, and an output of laser emitted to the material based on the amount of the chips removed from the virtual stock.",
    "6. The data processing device according to claim 5, wherein the second determination unit is configured to determine the path of the nozzle such that a position irradiated with the laser coincides with a position of an edge of the tool in the cutting path.",
    "7. The data processing device according to claim 5, wherein the data processing device is configured to generate the cutting path using CAM (Computer Aided Manufacturing), and the second determination unit is configured to determine the path of the nozzle using a program incorporated in the CAM.",
    "8. A machine tool capable of implementing an additive manufacturing technology, the machine tool comprising: a control unit configured to generate control data for manufacturing a product having a designated shape using the additive manufacturing technology, the control data including a path of a nozzle for supplying a material, the control unit including: a generating unit configured to generate shape data of the designated shape to form a virtual stock corresponding to the product; a first determination unit configured to determine a cutting path for a virtual cutting of the virtual stock having the designated shape by a tool until the virtual stock is finally formed into only chips; a calculating unit configured to calculate an amount of the chips removed from the virtual stock by the virtual cutting along the cutting path by determining an amount of an overlapped range between the tool and the virtual stock; a second determination unit configured to determine the path of the nozzle for implementing the additive manufacturing technology along the path of the nozzle based on the cutting path by temporally reversely reproducing the cutting path; and a third determination unit configured to determine at least one of a motion speed of the nozzle, an amount of supply of the material, and an output of laser emitted to the material based on the amount of the chips removed from the virtual stock.",
    "9. The machine tool according to claim 8, wherein the second determination unit is configured to determine the path of the nozzle such that a position irradiated with the laser coincides with a position of an edge of the tool in the cutting path.",
    "10. The machine tool according to claim 8, wherein the machine tool is configured to generate the cutting path using CAM (Computer Aided Manufacturing), and the second determination unit is configured to determine the path of the nozzle using a program incorporated in the CAM."
  ],
  "cpc": [
    "B29C 64/153",
    "B29C 64/106",
    "B29C 64/188",
    "B29C 64/386",
    "B33Y 10/00",
    "B33Y 30/00",
    "B33Y 40/00",
    "B33Y 50/00",
    "B33Y 50/02",
    "G05B 19/4099",
    "G05B 2219/49023",
    "Y02P 90/02"
  ],
  "assignees": [
    "MACHINE TOOL TECH RESEARCH FOUNDATION",
    "DMG MORI CO LTD"
  ],
  "filing_date": "2017-04-11",
  "publication_date": "2021-01-12",
  "grant_date": "2021-01-12",
  "priority_date": "2016-04-15",
  "application_number": "US-201715484382-A",
  "family_id": "59980470",
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}