Surface polishes of the SKD 61 tool steel by a femto pulse laser operating in a wide range of powers

Femtosecond laser polishing of additively manufactured parts at grazing incidence

“…The fs laser polishing could be used either as an alternative to or in combination with CW and long-pulse laser polishing to achieve the lowest surface roughness in a more efficient manner. Due to its promising potential, a few attempts have been made in using fs laser ablation to polish planar surfaces, mainly with initially low roughness [36][37][38]. Nevertheless, fs laser polishing of 3D AM parts is yet to be fully explored.…”

Study of the Processing Conditions for Stainless Steel Additive Manufacturing Using Femtosecond Laser

“…Yet scarcely studied for additive manufacturing, USP lasers could be a novel approach to solve the aforementioned problems of material processing, specially in relation to the increase of the profile complexity. Femtosecond lasers have been used mainly for surface processing of multiple materials [39][40][41][42][43][44][45]. The Heat-Affected Zone (HAZ) is smaller than in other kind of lasers [46], making femtosecond lasers an ideal tool for surface processing and surface structuring applications by ablation, but not in principle for 3D AM, where melting is required [6].…”