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Method for adjusting the deformation geometry of a deformation tool in an optimising manners, corresponding deformation tool and appropriate test tool

Inactive Publication Date: 2005-12-08
DAIMLER AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0003] It is the task of the invention to provide a process of the above described type which makes p

Problems solved by technology

An adjustment of this type of a deformation to

Method used

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  • Method for adjusting the deformation geometry of a deformation tool in an optimising manners, corresponding deformation tool and appropriate test tool
  • Method for adjusting the deformation geometry of a deformation tool in an optimising manners, corresponding deformation tool and appropriate test tool
  • Method for adjusting the deformation geometry of a deformation tool in an optimising manners, corresponding deformation tool and appropriate test tool

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DETAILED DESCRIPTION OF THE DRAWINGS

[0027]FIG. 1 shows in schematic partial representation a sheet metal 10 deep drawn on the basis of a deformation tool 12 shown in greater detail on the basis of FIG. 4, having the shape of a motor hood of a motor vehicle. The sheet metal 10 exhibits a geometric shape preformed by means of the deformation tool 12, which corresponds essentially to the desired intended geometry of the vehicle body part to be produced. However if there occurs an elastic spring back deformation which is fundamentally not to be avoided in the case of deep drawn aluminum sheet metal, strong, on the basis of which it is often not directly possible to achieve due to, even in the case of a correctly shaped deformation tool with respect to the deformation geometry, a sufficient precision of the deformation exactness of the sheet metal 10, in particular in regard to a previously provided sheet curvature in the main extension plane 20.

[0028] For adjusting or conforming the c...

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Abstract

The invention relates to a method for the optimizing the adjustment of the deformation geometry of a deformation tool (12) which is used to deform a sheet (10), especially sheet metal for a vehicle body. To this end, the sheet (10) is preformed by means of the deformation tool (12) to be adjusted, and at least one partial region deformation is then applied to the sheet meal (10) by means of a test tool (16) in order to correct the geometry of the sheet, and once the permissible sheet geometry is achieved, the geometry of the partial region deformation (14) is used to adjust the deformation geometry of the deformation tool (12).

Description

FIELD OF THE INVENTION [0001] The invention concerns a process for the optimal adjustment of the deformation geometry of a deformation tool provided for deforming a sheet (preferably sheet metal) according to the precharacterizing portion of claim 1. Further, the invention concerns a test tool (experimentation tool, trial-and-error tool) for carrying out the process according to the precharacterizing portion of claim 12, and a commensurate information tool according to the precharacterizing portion of claim 15. BACKGROUND OF THE INVENTION [0002] A process, an experimentation tool and a deformation tool of this type are already well known. In DE 41 32 607 A1 a process and a device are disclosed for adjusting a specific position of each tool set of a multistage process. For this, first tool sets for multistage sheet metal deformation are mounted on a base plate and the position of the base plate is adjusted in a separate initial adjustment press under simulation conditions, the precis...

Claims

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Application Information

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IPC IPC(8): B21D37/20
CPCB21D37/205
Inventor ERHARDT, BERNDSTIEDL, JOSEFSTRETZ, MATHIAS
Owner DAIMLER AG
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