Process for the marking, such as identifying and/or inscribing, of products in a production process using laser radiation

: Noll, R.; Sattmann, R.; Sturm, V.

Abstract
A process is known for the marking, such as identifying and/or inscribing, of products in a production process using laser radiation which is applied to a specified surface area of a product, whereby at least one marking program is produced and electronically provided, a laser radiation source is provided with a laser radiation suitable for the marking, the laser and marking parameters are set in relation to the product and the product is marked in the area applied by the laser radiation by performing a movement relative to the laser radiation. In order to design such a process, to prevent in particular impacts caused by irregularities in a production process for the incription of individual components, modules, rating plates, end products, etc., a plasma is produced during material evaporation before and/or during part of the marking which is not specific to a material, the radiations emitted by the plasma are spectrally detected and analyzed, material-specific product parameters are derived therefrom and the marking program is matched to said material-specific parameters.