Method of production for tamper-proof machine components
AssigneeSiemens Aktiengesellschaft
InventorsJochen Bretschneider, Björn Frerking, Guido Seeger
Life of this patent
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Abstract
A method for producing a machine component from a workpiece includes registering a dimension of a surface of the workpiece to be machined and a margin of tolerance of the dimension, generating a signature pattern for the surface to be machined, shaping the workpiece at least on the surface to be machined, where a signature pattern is simultaneously produced during the shaping, and producing a check code on the workpiece, where the signature pattern has maximum dimensions that are within the tolerance margin.
Claims16
A method for producing a machine component from a workpiece, the method comprising:
- a) registering a dimensioning of a surface of the workpiece to be machined and a margin of tolerance of the dimensioning;
- b) generating a signature pattern for the surface to be machined;
- c) shape-giving machining of the workpiece at least on the surface to be machined, the signature pattern is being produced during said shape-giving machining;
- and
- d) producing a check code on the workpiece;
- wherein the signature pattern has maximum dimensions which lie within the margin of tolerance;
- and
- wherein the signature pattern is formed as a wave texture on the surface of the workpiece.
A machine component, comprising:
- at least one surface upon which a signature pattern is formed and which is provided with a check code;
- wherein the signature pattern is produced by:
- a) registering a dimensioning of the at least one surface and a margin of tolerance of the dimensioning;
- b) generating the signature pattern for the at least one surface;
- c) shape-giving machining of a workpiece at least on the at least one surface, the signature pattern is being produced during said shape-giving machining;
- and
- d) producing the check code;
- wherein the signature pattern has maximum dimensions which lie within the margin of tolerance;
- and
- wherein the signature pattern is formed as a wave texture.
Dependencies are inferred from the claim text.