Improving surface finish in pulsed laser micro polishing using thermocapillary flow

Laser polishing of Cu/PLA composite parts fabricated by fused deposition modeling: Analysis of surface finish and mechanical properties

“…This method does not require any mechanical abrasives or polishing tools and can polish surfaces with very complex topography that are difficult or impossible to polish with conventional polishing methods . Laser polishing has so far been used to polish a variety of materials, including diamonds, glass, ceramics, and various metals . However, there are few studies on laser‐polished polymers, and the effects of laser polishing on the surface quality and mechanical properties of polymers are worthy of attention.…”

Surface prediction model for thermocapillary regime pulsed laser micro polishing of metals

“…1: IFS = 0.0085. Pfeffkerkorn et al [10] have suggested that IFS < 0.1 be chosen as the border between the capillary polishing regime and thermocapillary polishing regime for Ti-6Al-4V: hence, this case falls within the capillary PLP regime.…”

“…A 1 mm × 1 mm area was polished with the laser beam using a square zig-zag trajectory. The prediction of surface topography is based on the unpolished height Step-over distance (m) 10 10 Areal processing speed (mm 2 /s) 2.0 1.0 Energy per pulse (J) 7.6 × 10 −6 4.8 × 10 −5 data, which is measured at the same location as the polished surface profile data. Fig.…”

3D-imaging of selective laser melting defects in a Co–Cr–Mo alloy by synchrotron radiation micro-CT

“…The physical process of SLM is similar with micro laser beam welding, defects formation is also a typical characteristic during welding [22][23][24][25], which has a relationship to melt pool thermocapillary convection [10,16,26,27]. Therefore, the parameters that can influence the thermocapillary convection have potential impacts on defects formation.…”