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US 8,104,322 B2Granted
Method of working in pressing dies using marking paint
AssigneeAudi AG
InventorsIng. Matthias Kerschner, Josef Hollerbach
Life of this patent
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Abstract
The method according to the invention for working in pressing dies using marking paint wherein a fluorescent marking paint is used. This enables the operator in the manual working in of pressing dies to identify the painted tool surface without error and error-free detection of the tool surface occupied by marking paint is also possible by means of suitable devices (camera) for working-in of the pressing die which is done more or less automated.
Claims3
A method of restoring a selected surface contour of a tool of a machine operable to press form configured finished parts from planar sheet metal, comprising:
- applying a fluorescent marking paint on a surface of a planar sheet metal part;
- inserting said painted sheet metal part in said machine with the painted surface thereof facing said tool surface;
- operating said machine to press form said painted sheet metal part and thus cause said paint to transfer and mark high spots on said tool surface;
- removing said formed part;
- optically scanning paint transferred to said high spots and recording a pattern thereof;
- and
- removing said high spots by guiding a cutting tool over said tool surface corresponding to said recorded pattern.
4 more elements
Dependencies are inferred from the claim text.