Apparatus, system, and method for forming metal parts

Patent metadata

Field	Value
Publication number	US-11273481-B2
Application number	US-201916514642-A
Country	US
Kind code	B2
Filing date	Jul 17, 2019
Priority date	Dec 10, 2015
Publication date	Mar 15, 2022
Grant date	Mar 15, 2022

Abstract

An apparatus for forming a metal workpiece having a first surface is described herein. The apparatus includes a trough containing a liquid. The apparatus also includes a support for positioning the metal workpiece in an impact-receiving position. In the impact-receiving position, the first surface is submerged in the liquid. The apparatus includes a driven member for applying multiple impacts to the first surface of the metal workpiece while the metal workpiece is in the impact-receiving position.

First claim

What is claimed is:

1. A method of forming a metal workpiece, the method comprising:
submerging the metal workpiece in a liquid in a trough; and
with the metal workpiece submerged in the liquid, repeatedly impacting a first surface of the metal workpiece with an impact surface of a driven member made of a solid material, wherein the driven member is attached to a robot, and the robot is movable along a track extending along a length of the trough to enable the driven member to move relative to the length of the trough as the driven member applies multiple impacts to the metal workpiece.

2. The method of claim 1 , wherein the liquid comprises at least one of a corrosion-prevention additive and a lubrication additive.

3. The method of claim 1 , further comprising supporting the metal workpiece using a lower support, wherein a second surface of the metal workpiece, opposing the first surface, bears against the lower support.

4. The method of claim 3 , wherein supporting the metal workpiece comprises supporting the metal workpiece using a plurality of upper supports that bear against the first surface of the metal workpiece to directly oppose the lower support.

5. The method of claim 4 , further comprising changing a force applied to the first surface of the metal workpiece by each upper support of the plurality of upper supports.

6. The method of claim 4 , further comprising, with the metal workpiece submerged in the liquid and fixed relative to the liquid, moving the driven member relative to the metal workpiece in a first direction parallel to a width of the metal workpiece and a second direction parallel to a length of the metal workpiece.

7. The method of claim 4 , further comprising changing a position of each upper support relative to the trough.

8. The method of claim 1 , further comprising changing a position of the driven member relative to a length or width of the metal workpiece using the robot.

9. The method of claim 1 , wherein a hardness of the driven member is greater than a hardness of the metal workpiece.

10. A method of forming a metal workpiece, the method comprising:
submerging the metal workpiece in a liquid; and
with the metal workpiece submerged in the liquid, repeatedly impacting a curved first surface of the metal workpiece with an impact surface of a driven member made of a solid material, wherein the driven member is attached to a robot, and the robot is movable along a track extending along a length of the metal workpiece to enable the driven member to move relative to the metal workpiece as the driven member applies multiple impacts to the curved first surface of the metal workpiece.

11. The method of claim 10 , wherein the liquid comprises at least one of a corrosion-prevention additive and a lubrication additive.

12. The method of claim 10 , further comprising supporting the metal workpiece using a lower support, and a second surface of the metal workpiece, opposing the curved first surface, bears against the lower support.

13. The method of claim 12 , wherein supporting the metal workpiece comprises supporting the metal workpiece using a plurality of upper supports that bear against the curved first surface of the metal workpiece to directly oppose the lower support.

14. The method of claim 13 , further comprising changing a force applied to the curved first surface of the metal workpiece by each upper support of the plurality of upper supports.

15. The method of claim 13 , further comprising changing a position of each upper support relative to the trough.

16. The method of claim 10 , further comprising, with the metal workpiece submerged in the liquid and fixed relative to the liquid, moving the driven member relative to the metal workpiece in a first direction parallel to a width of the metal workpiece and a second direction parallel to a length of the metal workpiece.

17. The method of claim 10 , wherein the liquid is in a trough.

18. The method of claim 17 , wherein the track extends along a length of the trough.

19. The method of claim 10 , wherein a hardness of the driven member is greater than a hardness of the metal workpiece.

20. The method of claim 10 , further comprising changing a position of the driven member relative to a length or width of the metal workpiece using the robot.

Assignees

• Boeing Co

Inventors

• Jensen David G
• Mcgraw Michael D

Classifications

• B21D31/06 Primary

  Deforming sheet metal, tubes or profiles by sequential impacts, e.g. hammering, beating, peen forming (forging hammers B21J7/00) · CPC title

• B21D31/005

  Incremental shaping or bending, e.g. stepwise moving a shaping tool along the surface of the workpiece (B21D22/14 takes precedence) · CPC title

• B21D37/18

  Lubricating {, e.g. lubricating tool and workpiece simultaneously (lubricating workpieces for deep-drawing B21D22/201)} · CPC title

• C21D7/04

  of the surface · CPC title