Laser-Fabricated Micro-Dimples for Improving Frictional Property of SKH51 Tool Steel Surfaces
Chansovannkumpheak Phun,
Witthaya Daodon,
Kamthon Septham
et al.
Abstract:Friction involved in metal-forming processes typically leads to the wear of tool and die surfaces, and in turn shortens the tool’s service life. A thriving need for reducing surface friction requires the tool surface to be modified. This paper presents the surface modification of SKH51 tool steel, on which the hexagonal array of micro-dimples is fabricated by a nanosecond pulse laser. Using the average laser power of 25 W can create decent dimples for trapping lubricant and enabling hydraulic pressure at the s… Show more
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