An Experimental Investigation on Laser Surface Texturing of AISI D2 Tool Steel using Nanosecond Fiber Laser

Laser surface texturing provides several benefits such as improved tribological behavior of the surface, reduced friction, increased anti-adhesive properties and improved wettability and lubrication applications. Even though, surface topography or surface roughness resulting from laser processing of...

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Bibliographic Details
Published in:Lasers in manufacturing and materials processing 2021-06, Vol.8 (2), p.140-156
Main Authors: Yang, Lihang, Deng, Zihao, He, Bin, Özel, Tuğrul
Format: Article
Language:English
Subjects:
Argon
Engineering
Fiber lasers
Flux density
Friction reduction
Heat affected zone
Industrial and Production Engineering
Laser beam texturing
Laser processing
Lasers
Machines
Manufacturing
Oxidation
Parameters
Processes
Rare gases
Steel
Surface layers
Surface roughness
Surfaces and Interfaces
Texture
Texturing
Thin Films
Tool steels
Tribology
Wettability
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Summary:Laser surface texturing provides several benefits such as improved tribological behavior of the surface, reduced friction, increased anti-adhesive properties and improved wettability and lubrication applications. Even though, surface topography or surface roughness resulting from laser processing of steel surfaces have been studied in literature, the relation between laser texturing parameters and scale-limited areal surface texture parameters are not as much investigated and correlated. Fiber lasers provide a flexible solution for texturing different materials with different surface structures. In this paper, laser surface processing and texturing of tool steels is considered, and a nanosecond fiber laser system is utilized to scan and texture the surfaces of AISI D2 tool steel under a shield of Argon gas to prevent oxidation. The effects of laser energy density, scan velocity, and strategy on the texture line width and resultant areal surface texture parameters have been investigated. It was found that Argon gas during laser texturing of tool steel helps to achieve not only less heat affected zone but also slightly lower surface roughness indicating that the application of an inert gas requires further investigations.
ISSN:2196-7229
2196-7237
DOI:10.1007/s40516-021-00144-4