公开(公告)号：US11651120B2

公开(公告)日：2023-05-16

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 ,  B21D22/22 ,  G06F30/15

CPC classification number: G06F30/20 ,  B21D22/22 ,  G06F30/15

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：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.