Development and parametric study of a water-jet assisted underwater laser cutting process

A comparison of laser beam machining of micro-channels under dry and wet mediums

“…The absorption coefficient of water generally based on the wavelength of incident light, therefore, α w for water is 0.135 cm −1 if a laser of 1064-nm wavelength is used [53]. Selected SEM photographs are shown in Table 3 (images df) presenting that LBM under wet conditions produces set of two sub-channels instead of one over the whole ranges of variable factors.…”

Cavity formation and surface modeling of laser milling process under a thin-flowing water layer

“…water flow velocity, nozzle diameter, waterjet impinging angle and distance between the laser beam and jet impact position (stagnation point). Since the main intention of using waterjet in this process is to form a thin and flowing water film, the waterjet pressure needs not to be so high as applied in other hybrid laser-waterjet techniques [9][10][11]. However, a suitable flow velocity should be yielded to cause a circular water film whose diameter is large enough for laser to radiate within the ring region.…”

Aluminum bronze strengthening by heat treatment

“…W stanie lanym stosowany jest na części maszyn pracujące w środowisku korozyjnym przy znacznych obciążeniach, np. w przemyśle chemicznym, okręto-wym, lotniczym [1÷4, 7,10]. Po przeróbce plastycznej stosowany jest on na części aparatury chemicznej oraz kontrolno-pomiarowej, elementy narażone na przyspieszone zużycie ścierne, np.…”