EXAMPLES OF TECHNOLOGICAL APPLICATION OF THE LASER ABLATION MICRO-TREATMENT IN TRIBOLOGY
Journal Title: Tribologia - Year 2009, Vol 228, Issue 6
Abstract
In this paper examples of technological applications of laser ablation micro-treatment in combustion engine elements surface layer modification (valves, cylinder brush) are given. Nitrided valves handle modification allows obtaining characteristic topography of the surface with high micro-hardness, up to 1400 HV0,05. In the laser micro-treatment process of the steel area and cast iron cylinder brush, characteristic oil micro-containers were manufactured, which gather oil that implied improve working condition of piston–ring–cylinder brush association. By using nano-second long laser impulses, modification of the anvil face of the cast iron cylinder brushes surface layer was also carried out, obtaining a simultaneously cleaning effect and a partial surface layer micro melting effect.<br/><br/>
Authors and Affiliations
Wojciech Napadłek
Keywords
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