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Method and system for marking objects having surfaces of conductive material

A marking system and a technology for marking objects, applied in the direction of digital marking record carriers, record carriers used by machines, manufacturing tools, etc., can solve problems such as complexity and consumption, and achieve high-capacity effects

Active Publication Date: 2019-03-01
SICPA HLDG SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, this method requires the additional material of the electrode to be consumed when forming the mark
The prior art method is complex due to the necessary mesh and it requires preprocessing of the object surface

Method used

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  • Method and system for marking objects having surfaces of conductive material
  • Method and system for marking objects having surfaces of conductive material
  • Method and system for marking objects having surfaces of conductive material

Examples

Experimental program
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Embodiment Construction

[0068] figure 1 The setup of a system 10 for marking objects 18 according to a preferred embodiment is schematically shown. A system 10 for generating sparks and thereby generating random markings as described above includes a spark generator 12, a counter electrode 14 and a connector 16 for electrically connecting the spark generator 12 to an object 18 to be marked. Optionally, the system comprises a housing 20 for controlling the protective gas environment above the object to be marked. The housing can further confine the shielding gas. Spark generator 12 is electrically connected to counter electrode 14 and object 18 .

[0069] A single mark 22 obtained from a single spark generated between the counter electrode 14 and the clean and unoxidized metal surface of the object 18 may be distributed within a few square millimeters and may exhibit three-dimensional rough and fine structures. The mark may consist of hundreds of microscopic craters from which material was ablated...

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PUM

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Abstract

The invention describes a method for marking an object (18) having a surface of electrically conductive material. The method includes the step of applying an electrical spark to the surface such that the material is at least one of partially melted and partially ablated by the electrical spark, thereby forming a pattern on the object (18). Furthermore, the present application relates to a marking system (10) for marking an object (18) using a spark generator (12) having a counter electrode (14) and for using the spark generator ( 12) A connector (16) electrically connected to the surface of the object to be marked (18). Furthermore, the present application relates to a method for authenticating or identifying an object (18) marked by the above method for marking an object (18).

Description

technical field [0001] The present invention relates to the field of marking objects having surfaces of conductive material, namely methods and systems for marking such objects. Typically, marking is suitable for identification or authentication of marked objects. Background technique [0002] It is common to mark certain objects such as firearms, ammunition or valuables so that the individual objects can be identified or authenticated. Generally, the intention is that a mark can be applied to an object whose mark is unique compared to a fingerprint, can be easily identified, and thus allows easy identification or authentication of the object. In this context, it is important that the markings are as far as possible not to be copied or falsified. [0003] Today, marking solutions are based on the unique material, pattern or physical properties of the mark. These marks are usually created by printing techniques, laser engraving or mechanical engraving. Most of these marks...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K1/12G06K19/06G06K19/08B23H1/00G06K9/00
CPCB23H1/00G06K1/128G06K19/06121G06K19/086B23H9/06G06V20/80B23H11/00B23H1/08
Inventor E·豪拉斯J-L·多里耶
Owner SICPA HLDG SA
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