Systems and methods for simulating distortion and residual stress in an additive manufacturing process

    公开(公告)号:US11663373B1

    公开(公告)日:2023-05-30

    申请号:US16456086

    申请日:2019-06-28

    Applicant: Ansys, Inc.

    CPC classification number: G06F30/00 B23K26/342 B33Y50/00

    Abstract: Example systems and methods are disclosed for predicting structural distortion in a part geometry created by an additive manufacturing process. An octree mesh is generated for a part geometry based on a voxel file having voxel layers. The octree mesh is coarsened, a representation of stiffness for one of the voxel layers is generated based on the coarsened octree mesh, a force vector is determined based, in part, on the coarsened octree mesh and data from a thermal analysis of the part geometry, and a layer distortion is determined based, in part, on the force vector and the representation of stiffness. The structural distortion in the part geometry is predicted based on the layer distortion.

    Method for the computer-aided editing of a digital 3D model

    公开(公告)号:US11648096B2

    公开(公告)日:2023-05-16

    申请号:US15300114

    申请日:2015-02-04

    Inventor: Thorsten Jordan

    CPC classification number: A61C13/0004 A61C13/34 G06F30/00 G06T19/20 G16H20/40

    Abstract: A method for the computer-aided editing of a digital 3D model (1) of a dental object using digital tools (T1, T2, T3) provides for the identification of different dental-specific regions (R1, R2, R3) of the 3D model (1) that are affected by the tool (T1, T2, T3) in different ways, for computation of the effect on the whole 3D model and for display thereof as a proposal model (2) together with the 3D model (1). The proposal model (2) is then rejected or accepted in part or in full. If it is accepted in part, at least one subregion of the 3D model (1) is selected as a region (10) and a result model (6) is formed from the 3D model (1) and the proposal model (2) by virtue of the 3D model (1) being taken as the starting point for replacing the selected region (10) or at least a central portion of the selected region (10) with a corresponding region of the proposal model (2) or approaching the latter using a strength factor (S).

Patent Agency Ranking