研究目的
Investigating the effectiveness of an oil layer method in improving the processing quality and tribological behavior of laser surface textures.
研究成果
The oil layer laser fabrication method effectively improves the quality of laser textured surfaces by reducing the coverage area of metallic oxides and the height of ridges/burrs. The optimal oil film thickness was found to be approximately 0.28 mm. Tribological tests confirmed the method's favorable effect on reducing friction coefficient.
研究不足
The study is limited by the specific operational parameters of the laser system and the properties of the white oil used. The optimal film thickness may vary with different materials and laser settings.
1:Experimental Design and Method Selection:
The study used a BasiCube 10 fiber laser system to fabricate surface textures on low carbon 20CrMnTi steel disks. The laser system was controlled by a computer programmed for scanning along preassigned trails.
2:Sample Selection and Data Sources:
Circular dimples were arranged in a square grid-like array on polished steel disks.
3:List of Experimental Equipment and Materials:
Equipment included a BasiCube 10 fiber laser system, optical microscope, laser confocal microscope, and scanning electron microscope. Materials included low carbon 20CrMnTi steel disks and pharmaceutical white oil.
4:Experimental Procedures and Operational Workflow:
Laser ablation was conducted with oil film as a mask to cover the surface of the sample. The thickness of the oil film was controlled by pouring different volumes of oil into a container.
5:Data Analysis Methods:
The surface quality was analyzed using optical microscope, laser confocal microscope, and scanning electron microscope images. Tribological tests were conducted using a pin-on-disk method.
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