The article is devoted to the technological process modeling of marking on the surface of metal products using a pulsed laser. The described mathematical model allows us to select the optimal technological parameters of the laser marking complex in order to form the desired marking symbols on the surface of steel and alloy products with various chemical compositions, taking into account the physical properties of the marked material. The developed technological regimes have been tested and recommended for industrial applications in various industries, such as engineering, automotive, aircraft manufacturing and railway transport, as well as for the widespread usage of marking serial products from metal materials.

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The article is devoted to some aspects of laser marking technology for machine parts. We consider the local impact zone effect of the pulse laser beam on the surface of metal materials. The results describing the influence of process parameters on the quality of the being marked images by pulsed laser are submitted. The examples of using barcode marking on several materials for machine parts in selected technological modes of installation are given.

The article presents a technology for application and identification of nano-barcodes on the surface of industrial products. The essence of this process is to modify the surface of metallic materials by exposure to pulsed laser radiation. As a result of such exposure, the modified surface contains small labels, allowing storing encoded information directly on the machine part, bypassing intermediate carriers. The laser-applied labels are formed using software and encode informative data. The encoding of the input information ensures the uniqueness of the applied nano-barcodes. The proposed technology allows us to apply such unique labels on the materials surface for accounting and identification of industrial products. The proposed marking technology allows us to place a significant amount of information in a small area. Special software has been developed for decoding the information from the applied nano-barcode developed. Studies have been performed that have been conducted to determine the thickness of the marked symbols formed on the materials surfaces and the reliability of the applied symbols. There are also recommendations on the usage of the technology given for direct labeling of materials with the application of information with high recording density for various industries.