Laser texturing of an internal combustion engine camshaft

The article presents the methodology and results of research on laser texturing of the surface layer of a camshaft for a piston internal combustion engine, made of 41Cr alloy steel. Laser processing was performed using an Nd:YAG laser with a radiation wavelength of λ=1064 nm. The application of ablative laser micromachining in critical zones of the camshaft was intended to create an appropriate surface texture with hemispherical oil micro-reservoirs.

As a result of the experiments, a very regular surface texture was obtained, which will likely have a positive impact on tribological processes and reduce the wear of the camshaft journal-plain bearing pair.
TEXTURING OF LASER ROLL OF DISTRIBUTION EXPLOSION ENGINE
It the methodology and results of investigations of laser texturing top layer roll distribution explosion piston engine in article were introduced was, executed steel alloys
41Cr. It laser processing was conducted was with the help of laser Nd:YAG about wavelength laser radiation λ = 1064 nm. The use ablation of laser micromachining in neuralgic zones of roll of distribution had in view the producing from mikrozasobnikami the suitable texture of surface oil in shape the spherical oil microchannels. It the very regular texture of surface, what in result of conducted experiments was got was probably profitably the suppository of roll of distribution will influence on tribological processes the and decrease the waste of association – slide bearing.
1. ABLATIVE LASER MICROMACHINING TECHNOLOGY
Ablative laser micromachining technology enables the creation of modified micro- and nanostructures in the surface layer of engine components through the interaction of laser plasma and high pressure. (…)

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