公开(公告)号：US20210034711A1

公开(公告)日：2021-02-04

申请号：US16524412

申请日：2019-07-29

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ziqiang Sheng ,  Jounqmin Norman Goan ,  Adam R. Groseclose ,  Kleber Cabral

IPC: G06F17/50

Abstract: Systems and methods are provided for developing and producing a die using mesh data. A mesh data file representing a surface of the die is created. The mesh data file is configured in an original format that is one of a point-facet format or a node-element format. The mesh data file is translated into a translated format that is another of the point-facet format or the node-element format. Prior to building, the die, as represented by the mesh data file, is evaluated virtually.

公开(公告)号：US20220100923A1

公开(公告)日：2022-03-31

申请号：US17038590

申请日：2020-09-30

Applicant: GM Global Technology Operations LLC

Inventor： Ziqiang Sheng ,  J N Goan ,  Adam R. Groseclose ,  Kleber M. Cabral

IPC: G06F30/20 ,  G06F30/15 ,  B21D22/22

Abstract: A system is provided for producing a die that forms a sheet metal blank into a workpiece for a stamped vehicle component. The system includes a processor receiving design data associated with the workpiece. The processor produces a computer simulation based on the data and determines a stretching index of the workpiece. The processor compares the stretching index to an index threshold. The processor generates a stretching failure signal when the stretching index is above the index threshold. The processor generates a stretching acceptance signal, and a display device indicates that the workpiece has a fracture when the stretching index is below the index threshold. The display device indicates that the workpiece does not have the fracture, when the display device receives the stretching acceptance signal, such that a die manufacturing device transforms a tool material into the die.

公开(公告)号：US11373020B2

公开(公告)日：2022-06-28

申请号：US16524412

申请日：2019-07-29

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ziqiang Sheng ,  Jounqmin Norman Goan ,  Adam R. Groseclose ,  Kleber Cabral

IPC: G06F30/20 ,  G06F111/10 ,  G06F119/18

Abstract: Systems and methods are provided for developing and producing a die using mesh data. A mesh data file representing a surface of the die is created. The mesh data file is configured in an original format that is one of a point-facet format or a node-element format. The mesh data file is translated into a translated format that is another of the point-facet format or the node-element format. Prior to building, the die, as represented by the mesh data file, is evaluated virtually.

公开(公告)号：US20240424545A1

公开(公告)日：2024-12-26

申请号：US18339855

申请日：2023-06-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jatinder P Singh ,  Christopher Ian Roman ,  Adam R. Groseclose ,  Kevin Anthony Beam ,  Thomas Joseph Mitcheltree, III

IPC: B21D22/02

Abstract: Components, methods for producing the components from metallic blanks, and vehicles comprising the components are provided. The components include a body having protrusions and recesses formed by a process including forming the component from a metallic blank by a drawing or stamping process. The metallic blank has at least one notch along a perimeter thereof that is configured to reduce elastic strain retained in the component formed therefrom. The at least one notch provides for relaxation of elastic strain within the component during the drawing or stamping process and thereby reduces springback distortion of the component.