Selected issues of laser surface texturing

The study presents selected aspects related to the technology of laser surface texturing of SiC elements operating in sliding contact. The descriptive part analyzes the features of the laser beam relevant from the point of view of texture production. The research part presents the results of technological experiments. The result of the work is guidelines for texturing technology using an Nd:YAG laser.Laser surface texturing is one of the elementary processes of laser micromachining [1]. It consists of the local and short-term thermal or photochemical action of a suitably profiled focused laser beam on various materials in order to remove, melt, heat, or change their properties.
The basic technological processes of micromachining are: micro-drilling, cutting and excision in small-sized elements, layer removal, and semiconductor doping.
The most important advantages of laser micromachining are: small area of action, remote (non-contact) operation, short-term action, high process efficiency, and ease of automation of laser devices [10].
The area of action in micromachining depends on the ability to focus the laser radiation beam and thus also on the wavelength of the laser radiation [5]. (…)

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