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：US20230408323A1

公开(公告)日：2023-12-21

申请号：US17807881

申请日：2022-06-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ziqiang Sheng ,  Kleber M Cabral

IPC: G01G19/414 ,  G01N9/00

CPC classification number: G01G19/414 ,  G01N9/00

Abstract: In accordance with various embodiments, methods and systems are provided for estimating the mass of a numerically formed sheet metal panel. In one embodiment, a method includes: receiving, by a processor, a component data file that includes data that defines a geometry of a sheet metal component; generating, by the processor, element data based on the component data file, wherein the element data defines a plurality of elements of the component; determining, by the processor, a mass of each element of the plurality of elements based on the element data; determining, by the processor, a component mass based on a summation of the masses of the plurality of elements; and generating, by the processor, component mass data for display or design based on the determined component mass.

公开(公告)号：US20240427957A1

公开(公告)日：2024-12-26

申请号：US18339803

申请日：2023-06-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ziqiang Sheng ,  Timothy J Byrd ,  Ronald Schabel ,  Kleber M Cabral ,  Michael J Watson

IPC: G06F30/20 ,  G06F30/15

Abstract: Methods and systems for analyzing stamped parts having a final shape for a vehicle are provided. A method includes receiving data for the stamped part; producing a computer simulation based on the data; determining a wrinkling index (WI) for the stamped part in response to the processor producing the computer simulation; determining whether an element under analysis is located at a trimmed edge of the stamped part; when the element under analysis is located at a trimmed edge of the stamped part, determining a stretching index (SI) for a trimmed edge portion, or when the element under analysis is not located at a trimmed edge of the stamped part, determining a SI for a plane stress portion in response to the processor producing the computer simulation; comparing the SI to a SI threshold and/or comparing the SI to the WI; and generating, using the processor, a uniform failure index (UFI).