Stamping tool, casting mold and methods for structuring a surface of a work piece
AssigneeSharp Kabushiki Kaisha
InventorThomas Sawitowski
Life of this patent
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Abstract
A simple, cost-effective stamping or molding in the nanometer range is enabled using a stamping surface or molding face with a surface layer having hollow chambers that have been formed by anodic oxidation.
Claims18
Method for producing a stamping tool with a structured stamping surface, comprising the steps of:
- oxidizing a surface or covering layer of the stamping tool for forming the stamping surface at least partially anodally and forming open hollow chambers that are at least essentially uniformly shaped and at least essentially evenly distributed over the surface or surface area of the stamping surface without the use of a model.
Method for structuring a surface of a work piece in a nanometer range by means of a stamping tool with a structured stamping surface, comprising at least one of pressing and rolling a stamping surface, formed of an anodally oxidized surface or covering layer with open hollow chambers which have diameters in a nanometer range that have been created model-free by anodic oxidation, onto the surface to be structured.
Method for at least partially structuring a surface of a cast work piece, comprising the steps of:
- casting the work piece using a casting mold with a structured molding face having an anodally oxidized surface or covering layer with open hollow chambers created model-free by anodic oxidation.
Method for producing an anti-reflection surface having a moth-eye structure on a workpiece, comprising:
- pressing or rolling a first tool onto a surface of the workpiece to form a rough structure on the surface of the workpiece, and then
- pressing or rolling a second tool onto the surface of the workpiece to form the moth-eye structure having a plurality of fine protrusions.
Dependencies are inferred from the claim text.