Method for producing a formed component having a dimensionally accurate wall region

Patent metadata

Field	Value
Publication number	US-11097330-B2
Application number	US-201716337051-A
Country	US
Kind code	B2
Filing date	Sep 22, 2017
Priority date	Sep 29, 2016
Publication date	Aug 24, 2021
Grant date	Aug 24, 2021

Abstract

A method for producing a formed component is disclosed. The method includes: preforming a workpiece to a preformed component having a base region, a wall region, and optionally a flange region, wherein a material quantity adaptation is set in the preformed component; and calibrating the preformed component to a finally formed component, at least in regions, having a base region, a wall region, and optionally a flange region, wherein compressing of the preformed component is performed at least in regions during the calibrating. The method provides a formed component wherein the dimensional accuracy is improved and, in particular, any spreading of the walls of U-shaped components or part-portions can be influenced in a targeted manner, so as to further improve the dimensional accuracy of the formed component. The material quantity adaptation is set by way of a base-specific material quantity adaptation, a wall-specific material quantity adaptation, a radii-specific material quantity adaptation, and/or optionally a flange-specific material quantity adaptation. A formed component made by the method is also disclosed.

First claim

The invention claimed is:

1. A method for producing a formed component, the method comprising the steps of:
preforming a workpiece into a preformed component having a base region, a wall region, and a flange region, wherein a material quantity adaptation is set in the preformed component; and
calibrating the preformed component, at least in regions, to a finally formed component having the base region, the wall region, and the flange region, wherein compressing of the preformed component is performed at least in regions during the calibrating,
wherein the material quantity adaptation is set by way of a material quantity adaptation of the base region, the wall region, a radius region, and/or the flange region,
wherein an amount in percent of a material quantity adaptation of the base region is a percentage of a final material quantity of a base region of the component, an amount in percent of a material quantity adaptation of the wall region is a percentage of a final material quantity of a wall region of the component, an amount in percent of a material quantity adaptation of the radius region is a percentage of a final material quantity of a radius region of the component, and an amount in percent of a material quantity adaptation of the flange region is a percentage of a final material quantity of an flange region of the component, and at least two of the amounts selected from the amount of the material quantity adaptation of the base region, the amount of the material quantity adaptation of the wall region, the amount of the material quantity adaptation of the radius region, and the amount of the material quantity adaptation of the flange region differ from one another,
wherein the amount of the material quantity adaptation of the base region and the amount of the material quantity adaptation of the wall region are set such that a material flow from the wall region in a direction of the base region and/or a material flow from the base region in a direction of the wall region is performed during the calibrating, and/or wherein the amount of the material quantity adaptation of the wall region and the amount of the material quantity adaptation of the flange region are set such that a material flow from the wall region in a direction of the flange region and/or a material flow from the flange region in a direction of the wall region is performed during the calibrating, and
wherein the amounts of at least two material quantity adaptations selected from the group consisting of the material quantity adaptation of the base region, the material quantity adaptation of the wall region, the material quantity adaptation of the radius region, and the material quantity adaptation of the flange region differ from one another by at least 0.2 percentage points.

2. The method as claimed in claim 1 , wherein a material quantity adaptation of the base region, the wall region, the radius region, and/or the flange region is a material addition.

3. The method as claimed in claim 1 , wherein at least two material quantity adaptations selected from the group consisting of the base-specific material quantity adaptation of the base region, the material quantity adaptation of the wall region, the material quantity adaptation of the radius region, and the material quantity adaptation of the flange region are a material addition, and at least one material addition is larger than at least one other material addition.

4. The method as claimed in claim 1 , wherein at least one selected from the material quantity adaptation of the base region, the material quantity adaptation of the wall region, the material quantity adaptation of the radius region, and the material quantity adaptation of the flange region is set in such a manner that a wall opening angle and/or a wall curvature radius of the finally formed component, at least in regions, is influenced in a targeted manner.

5. The method as claimed in claim 1 , wherein a difference between the amounts of at least two material quantity adaptations selected from the group of the material quantity adaptation of the base region, the material quantity adaptation of the wall region, the material quantity adaptation of the radius region, and the material quantity adaptation of the flange region is set so as to be sufficiently large such that any spreading of the wall region of the finally formed component, at least in regions, is substantially avoided.

6. The method as claimed in claim 1 , wherein a difference between the amounts of at least two material quantity adaptations selected from the group of the material quantity adaptation of the base region, the material quantity adaptation of the wall region, the material quantity adaptation of the radius region, and the material quantity adaptation of the flange region is set so as to be sufficiently minor such that any inward folding of the wall region of the finally formed component, at least in regions, is substantially avoided.

7. The method as claimed in claim 1 , wherein at least one material quality adaptation selected from the group of the material quantity adaptation of the base region, the material quantity adaptation of the wall region, the material quantity adaptation of the radius region, and the material quantity adaptation of the flange region is a material addition and is set so as to be sufficiently large such that any spreading of the wall region of the finally formed component, at least in regions, is substantially avoided.

8. The method as claimed in claim 1 , wherein the material quantity adaptation of the wall region is a material addition and is set so as to be sufficiently large that any excessive wall curvature of the wall region of the component at least in portions of the finally formed component is substantially avoided.

9. The method as claimed in claim 1 , wherein the formed component has a cup-shaped cross section.

10. The method as claimed in claim 1 , wherein the formed component is made from one of a steel material and an aluminum material.

11. A formed component having a base region, a wall region, and a flange region, produced by the method as claimed in claim 1 .

12. The method as claimed in claim 1 , wherein the amounts of at least two material quantity adaptations selected from the group of the material quantity adaptation of the base region, the material quantity adaptation of the wall region, the material quantity adaptation of the radius region, and the material quantity adaptation of the flange region differ by at least 0.5 percentage points.

13. The method as claimed in claim 1 , wherein the amounts of at least two material quantity adaptations selected from the group of the material quantity adaptation of the base region, the material quantity adaptation of the wall region, the material quantity adaptation of the radius region, and the material quantity adaptation of the flange region differ by at least 2 percentage points.

14. A method for producing a formed component, the method comprising the steps of:
preforming a workpiece into a preformed component having a base region and a wall region, wherein a material quantity adaptation is set in the preformed component; and
calibrating the preformed component, at least in regions, to a finally formed component having the base region and the wall region, wherein compressing of the preformed component is performed at least in regions during the calibrating,
wherein the material quantity adaptation is set by way of a material quantity adaptation of the base region, the wall region, and/or a radius region,
an amount in percent of a material quantity adaptation of the base region is a percentage of a fin

Assignees

• Thyssenkrupp Steel Europe Ag
• Thyssenkrupp Ag

Inventors

• Flehmig Thomas
• Kibben Martin
• Nierhoff Daniel

Classifications

• B21D22/30 Primary

  to finish articles formed by deep-drawing · CPC title

• B21D22/20

  Deep-drawing (special deep-drawing arrangements in, or in connection with, presses B21D24/00) · CPC title