Mathematical modeling of laser induced heating and melting in solids

Fabrication of high-aspect-ratio microstructures using excimer laser

“…For silicon, although its thermal conductivity (~150 W/m-K) is lower than that of aluminum, it has a higher melting temperature ( 1400 ºC); the combination of these two properties also make silicon's ablation rate or depth is similar to that of aluminum. On the other 12 and Shen, et al 13 hand, not only the thermal conductivity of glass (~1.0 W/m-K) is significantly lower than silicon and aluminum, but also its melting or glass transition temperature (~700 ºC) is much lower than the melting temperature of silicon and about the same as the aluminum. As a result, among the three materials considered, the glass exists the best ablation efficiency and should be a good candidate for laser ablation.…”

Laser heating induced plastic deformation in a pre-elastic-stretched titanium alloy strip

“…Therefore many manufacturing processes adopted heating in metallic alloy plate forming [1][2][3]. Attracted by the advantages of Laser as a heating source, many investigations have been conducted on the forming mechanism by pure laser heating [4,5]. In these processes, the thermal loadings are commonly exerted on the work pieces no latter than the mechanical loadings or even without the mechanical loadings.…”

Microstructure evolution of WC/steel composite by laser surface re-melting

“…The scanning rate was changed from 5 mm/s to 16 mm/s, the depth of melted zone obtained was approximately 0.35 mm and 0.15 mm, respectively. The result implied that the melt depth decreased with the increase of laser scanning rate [16]. Fig.…”