Computer aided generative design with tool size control to facilitate 2.5-axis subtractive manufacturing processes

    公开(公告)号:US11243510B2

    公开(公告)日:2022-02-08

    申请号:US16931866

    申请日:2020-07-17

    申请人: Autodesk, Inc.

    IPC分类号: G05B19/4155 G06F30/10

    摘要: Methods, systems, and apparatus, including medium-encoded computer program products, for computer aided design of physical structures include: obtaining a density-based representation of a modeled object and data specifying a starting element for each of multiple different subsets of elements; processing starting elements having milling depths associated with layers below a top most layer, the processing including, for a current starting element for a current layer, identifying other starting elements that have milling depths associated with a layer above the current layer and are closer to the current starting element than an amount at least equal to a radius of a smallest available milling tool, calculating a maximum angular difference, and moving the milling depth for the element subset of the current starting element to a layer above the current layer, responsive to the maximum angular difference being greater than a threshold, to remove a non-manufacturable corner.

    COMPUTER AIDED GENERATIVE DESIGN WITH FILTERING TO FACILITATE 2.5-AXIS SUBTRACTIVE MANUFACTURING PROCESSES

    公开(公告)号:US20210356939A1

    公开(公告)日:2021-11-18

    申请号:US16877286

    申请日:2020-05-18

    申请人: Autodesk, Inc.

    摘要: Methods, systems, and apparatus, including medium-encoded computer program products, for computer aided design of physical structures using generative design processes, where the 3D models of the physical structures are produced so as to facilitate manufacturing of the physical structures using 2.5-axis subtractive manufacturing systems and techniques, include: obtaining a design space for an object to be manufactured, design criteria, and load case(s); iteratively modifying a generatively designed 3D shape of the modeled object, including generating 2D profile representations (corresponding to discrete layers) of an updated version of the 3D shape, extruding the 2D profile representations along the milling direction, and forming a next version of the 3D shape of the modeled object from a combination of the 3D representations produced by the extruding; and providing the generatively designed 3D shape of the modeled object for use in manufacturing the physical structure using a 2.5-axis subtractive manufacturing process.

    Roughing toolpath sequences generation for computer aided manufacturing

    公开(公告)号:US11176291B2

    公开(公告)日:2021-11-16

    申请号:US16107487

    申请日:2018-08-21

    申请人: Autodesk, Inc.

    摘要: Methods, systems, and apparatus, including medium-encoded computer program products, for computer aided design and manufacture of physical structures using roughing toolpath sequences generated for subtractive manufacturing include, in one aspect, a method including: obtaining 3D models of a part and a workpiece and information regarding different cutting tools and cutting data therefor; determining a set of candidate combinations of the different cutting tools to effect the roughing operations by estimating a target machining result for each of multiple, tool-size-ordered lists of the different cutting tools; generating an expanded set of combinations of the different cutting tools to effect the roughing operations by adding variations of the candidate combinations; populating a multidimensional roughing operations representation vector using the expanded set of combinations; optimizing values of the multidimensional roughing operations representation vector using simulation of the roughing operations; and providing specified tool selections and operational parameters for use in roughing the part.

    Composite part manufacturing compensation system and method

    公开(公告)号:US11167504B2

    公开(公告)日:2021-11-09

    申请号:US16226884

    申请日:2018-12-20

    申请人: Autodesk, Inc.

    摘要: A method and system for assisting in the manufacture of composite parts such as those used for various high-strength assemblies such as aircraft wings, vertical stabilizers, racing car shells, boat hulls, and other parts which are required to have a very high strength to weight ratio. The system uses laser technology to measure the resultant surfaces of a first manufactured composite part. A computer system analyzes and compares the as-built dimensions with the required production specifications. Supplemental composite filler plies are designed including shape and dimensions. These plies are nested together into a single composite sheet and manufactured to minimize wasted material. The plies are then cut out and applied to the first part guided by a laser projection system for locating the plies on the part. The part is then re-cured. The final assembly is then re-measured for compliance with production dimensions.

    Estimating physical property of 3D printed parts

    公开(公告)号:US11130292B2

    公开(公告)日:2021-09-28

    申请号:US15970291

    申请日:2018-05-03

    申请人: Autodesk, Inc.

    摘要: Methods, systems, and apparatus, including medium-encoded computer program products, for estimating the physical properties of 3D printed objects that include: obtaining a three dimensional (3D) model of a 3D object to be manufactured by a 3D extrusion printer; obtaining at least a portion of tool path data for the 3D extrusion printer to build the 3D object in accordance with the 3D model; creating unit cell geometry from the at least a portion of tool path data using at least one limitation on one or more unit cells of the unit cell geometry with respect to an aspect of the 3D extrusion printer's build of the 3D object; generating a numerical simulation of one or more microstructural properties of the 3D object to be built using the unit cell geometry; and estimating one or more macroscale properties, of the 3D object to be built, from the numerical simulation.

    Producing overall curvature continuous surfaces from subdivision surface meshes

    公开(公告)号:US11120625B2

    公开(公告)日:2021-09-14

    申请号:US16837690

    申请日:2020-04-01

    申请人: Autodesk, Inc.

    IPC分类号: G06T17/20

    摘要: Methods, systems, and apparatus, including medium-encoded computer program products, for computer aided design of structures include, in one aspect, a method for producing continuous (G2) NURBS surfaces from arbitrary subdivision surface meshes, the method including: obtaining a control mesh of a subdivision surface; obtaining limit surface patches subdivided from the control mesh using at least two levels around any extraordinary regions of the control mesh; discarding discontinuous surface patches, which include a star point; producing replacement surface patches for the discarded patches using adjacent surface patches, wherein the replacement surface patches are curvature continuous with each other and with the adjacent surface patches; combining each of the replacement surface patches with at least one non-discarded surface patch generated from a same polygon of the control mesh as the replacement surface patch; and processing the combined surface patches for output by a physical device.

    INSPECTION AND CLEANUP OF PHYSICAL STRUCTURES USING AUGMENTED REALITY

    公开(公告)号:US20210264670A1

    公开(公告)日:2021-08-26

    申请号:US16799383

    申请日:2020-02-24

    申请人: Autodesk, Inc.

    摘要: A method and system provide the ability to examine a three-dimensional (3D) structure. A physical 3D structure is acquired. A digital model of the 3D structure is acquired in an augmented reality (AR) system. The digital model is calibrated to match the 3D structure. The digital model is projected onto the 3D structure. A tool interacting with the 3D structure is tracked and the interaction is analyzed. A visualization of the projected digital model is updated based on the analysis.