METHOD FOR LASER-CUTTING STRUCTURAL COMPONENTS TO BE JOINED

Title:

METHOD FOR LASER-CUTTING STRUCTURAL COMPONENTS TO BE JOINED

Document Type and Number:

WIPO Patent Application WO2002072304

Kind Code:

A3

Abstract:

The invention relates to a method for laser-cutting (s) structural components (1, 2) to be joined, wherein the laser radiation is guided by means of a computer-controlled handling system in which an ideal trajectory (SB) is defined for every structural component (1, 2). Said desired track corresponds to a joining line that is bent due to an especially three-dimensional structural component (1). The method is further characterized in that the surfaces (TO1, TO2) of the structural components (1, 2) that comprise the joining line are measured. On the basis of the results of measurement thereby obtained an ideal trajectory (SB) that corresponds to a penetration line (D) of the structural components (1, 2) is calculated. On a structural component surface (TO1, TO2) resulting from said measurement a mark (Ma) is attached on said structural component surface (TO1). The joint of the cut produced by cutting a structural component (1) and the mark (Ma) of the structural component surface (TO1) are measured and, if the joint of cut (3) deviates from the ideal trajectory (SB), the handling system is controlled during cutting in order to eliminate said deviation.

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Inventors:

SCHULZ WOLFGANG (DE)
MICHEL JAN (DE)
ABELS PETER (DE)
ALBER GERHARD (DE)
NEUBERT JOERG (DE)
BEHR FRIEDRICH (DE)
KAIERLE STEFAN (DE)

Application Number:

PCT/DE2002/000818

Publication Date:

January 15, 2004

Filing Date:

March 07, 2002

Export Citation:

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Assignee:

FRAUNHOFER GES FORSCHUNG (DE)
THYSSEN LASER TECHNIK GMBH (DE)
NOTHELFER GMBH (DE)
KRUPP DRAUZ GMBH (DE)
SCHULZ WOLFGANG (DE)
MICHEL JAN (DE)
ABELS PETER (DE)
ALBER GERHARD (DE)
NEUBERT JOERG (DE)
BEHR FRIEDRICH (DE)
KAIERLE STEFAN (DE)

International Classes:

B23K26/04; B23K26/24; B23K26/38; (IPC1-7): B23K26/30; B23K26/38; B23K26/04

Foreign References:

DE3818402C1	1989-11-16
US5463202A	1995-10-31

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