公开(公告)号：US11992870B2

公开(公告)日：2024-05-28

申请号：US17737414

申请日：2022-05-05

Applicant: Ford Motor Company

Inventor： Christian Richard Genereux ,  Robert Vaughn Degenhardt ,  Philip Trinh

IPC: B21D39/02 ,  B21D5/04 ,  B21D19/04 ,  B21D19/08 ,  B21D37/04 ,  B62D25/16

CPC classification number: B21D39/021 ,  B21D5/047 ,  B21D19/043 ,  B62D25/16 ,  B21D19/082 ,  B21D37/04

Abstract: A method of forming a vehicle panel includes deforming a sheet metal workpiece between stamping tools to form a first and second edges that converge at a corner of the workpiece's main surface. The first edge is defined by a junction of the main surface and a first flange. The second edge is defined the main surface and a second flange. Forming the first and second edges includes deforming the workpiece so that the second flange has a first region bent to a first angle relative to the main surface and an unwinding region bent to an angle that unwinds from the first region as the second flange approaches the corner. The method includes deforming the workpiece between a second set of stamping tools that deform the first flange and the unwinding region of the second flange until the first and second flanges are bent greater than 90°.

公开(公告)号：US20220258224A1

公开(公告)日：2022-08-18

申请号：US17737414

申请日：2022-05-05

Applicant: Ford Motor Company

Inventor： Christian Richard Genereux ,  Robert Vaughn Degenhardt ,  Philip Trinh

IPC: B21D39/02 ,  B21D5/04 ,  B62D25/16 ,  B21D19/04

Abstract: A method of forming a vehicle panel includes deforming a sheet metal workpiece between stamping tools to form a first and second edges that converge at a corner of the workpiece's main surface. The first edge is defined by a junction of the main surface and a first flange. The second edge is defined the main surface and a second flange. Forming the first and second edges includes deforming the workpiece so that the second flange has a first region bent to a first angle relative to the main surface and an unwinding region bent to an angle that unwinds from the first region as the second flange approaches the corner. The method includes deforming the workpiece between a second set of stamping tools that deform the first flange and the unwinding region of the second flange until the first and second flanges are bent greater than 90°.

公开(公告)号：US20240307943A1

公开(公告)日：2024-09-19

申请号：US18184993

申请日：2023-03-16

Applicant: Ford Motor Company

Inventor： Robert Vaughn Degenhardt ,  Mark Broadworth ,  Rudolf Gerich ,  Evangelos Liasi ,  Christian Richard Genereux

IPC: B21D22/10 ,  B21D53/88

CPC classification number: B21D22/10 ,  B21D53/88

Abstract: A stamping tool includes a lower pad, upper pad, forming steel, and sub-pad. The lower pad includes a lower forming surface recessed in a first direction between a first lower pad surface and the second lower pad surface. The upper pad is movable along a second direction. In an extended position, the upper pad holds a workpiece against the first lower pad surface. The forming steel includes a first forming surface and is movable along the first direction. In an extended position, the forming steel is received in the recess. The sub-pad is coupled to the forming steel such that the forming steel moves the sub-pad in the first direction as the forming steel moves from the retracted position to an intermediate position in which the sub-pad holds the workpiece against the second lower pad surface while the forming steel continues to move to the extended position.

公开(公告)号：US20230028435A1

公开(公告)日：2023-01-26

申请号：US17380464

申请日：2021-07-20

Applicant: Ford Motor Company

Inventor： Evangelos Liasi ,  Liang Huang ,  Robert Vaughn Degenhardt ,  Christian Richard Genereux ,  Ryan Muirhead

IPC: G06F30/23 ,  G06F30/15

Abstract: A method for compensating springback of a part includes running a finite element analysis (FEA) simulation of forming a panel using a model of forming die such that a panel with springback is simulated, determining at least two zero springback locations on the panel where hanging apertures are simulated, running an FEA simulation of the panel hanging from the hanging apertures, and comparing a geometry of the hanging panel to a geometry of a reference panel such that a difference between the geometry of the hanging panel and the geometry of the reference panel due to the springback is determined and compensated.