公开(公告)号：US20240070838A1

公开(公告)日：2024-02-29

申请号：US18240879

申请日：2023-08-31

Applicant: NUtech Ventures

Inventor： Ziyad Smoqi ,  Prahalada Rao ,  Benjamin Bevans ,  Aniruddha Gaikwad

IPC: G06T7/00 ,  B22F12/90 ,  B33Y50/02

CPC classification number: G06T7/0004 ,  B22F12/90 ,  B33Y50/02 ,  G06T2207/20081

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for detection of defects in additive manufacturing. In some implementations, a method includes obtaining an image representing a volume of molten material; extracting one or more features from the image; providing the one or more features to a trained machine learning model; obtaining output from the trained machine learning model; and determining, using the output, a defect in a part.

公开(公告)号：US20220284154A1

公开(公告)日：2022-09-08

申请号：US17668025

申请日：2022-02-09

Applicant: NUtech Ventures

Inventor： Reza Yavari ,  Prahalada Rao ,  Kevin D. Cole

IPC: G06F30/20 ,  B33Y50/00

Abstract: Systems for simulating temperature during an additive manufacturing process. A system can access a computer-modelled part representing a physical part, populate first nodes within a first region of the part with temperature values, the first region having a first density of the first nodes, populate second nodes within a second region of the part with temperature values, the second region having a second density of the second nodes less than the first density of the first nodes and being distal the surface of the part where material is added, remove first nodes from part of the first region proximate the second region, simulate adding material on the surface of the part to form a new layer, the new layer being part of the first region and having first nodes distributed according to the first density, and populate the first nodes within the new layer of the part with temperature values.

公开(公告)号：US20220114307A1

公开(公告)日：2022-04-14

申请号：US17499402

申请日：2021-10-12

Applicant: NUtech Ventures

Inventor： Jordan Severson ,  Prahalada Rao ,  Reza Yavari ,  Kevin D. Cole

IPC: G06F30/20

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for an additive manufacturing heat transfer simulation. For example, an additive manufacturing heat transfer simulation system converts a model of an object into a node representation of the object, and generates a network graph of the object based on the node representation. For each block of nodes in the node representation the system applies a simulated heat to the block of nodes, estimates a diffusion of heat to other nodes based on the network graph, and estimates a heat loss to atmosphere. The system generates a representation of an estimated heat distribution within the object.