Laser Texturing with Conventional Fiber Laser

Laser surface texturing of tool steel: textured surfaces quality evaluation

“…Surface morphology has been affected by a presence of solidified melt rim (recast layer) around the edge of depression and by the presence of molten material on the walls and the bottom of the depression. Presence of solidified melt rim and molten material is a typical component of texture (dimples) recorded also other reserchers who studied laser tex- turing by nanosecond pulsed laser beam [7,9]. Texture surface density is affected by presence of recast layers around the edges of single depressions.…”

“…This technology also gives very important tool for development of rapidly growing micro-technology industry [3,6]. One of the most specific applications of laser beam machining is the use of a laser beam for surface texturing [7,8]. It is one of the existing methods of friction reduction based on the principle of covering the samples by regular arrays of ablated dimples, with different size and shape (typically spherical or cylindrical) [9,10].…”

Assessment the Sliding Wear Behavior of Laser Microtexturing Ti6Al4V under Wet Conditions

“…This kind of techniques represents an essential tool to improve the functional performance of specific alloys in working environments, through the variation of specific features as wetting or tribological behavior [9][10][11][12][13][14][15]. By using laser surface processing procedures regular or random texture patterns can be achieved [13,[16][17][18][19][20][21]. Laser texturing techniques can be used to induce a large variety of topographies in terms of the distribution and geometry of the irradiated pattern being the most common linear, circular and pulses array distributions [13,16,19,21].…”

“…By using laser surface processing procedures regular or random texture patterns can be achieved [13,[16][17][18][19][20][21]. Laser texturing techniques can be used to induce a large variety of topographies in terms of the distribution and geometry of the irradiated pattern being the most common linear, circular and pulses array distributions [13,16,19,21]. Due to this fact, it is known that the geometrical and dimensional characteristics of the generated structures have a direct influence with the contact angle between the liquid and solid phases, resulting in higher or lower water retention capability [13,19,[22][23][24][25][26].…”

“…An additional benefit of the ultra-short laser pulses (i.e., picosecond or even femtosecond) is the prevention of material pile-up around the edges of the textured features (pockets). However, this type of laser systems has important disadvantages, such as low resistance to industrial environments and high costs, which makes it difficult to integrate into real life applications [21,[30][31][32]. However, they have been recently integrated into the manufacturing process for specific applications [33,34].…”