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- W4310995931 abstract "Abstract The chief aim of this paper is to control groove morphology precisely. In this paper, a 2D temperature field model for ultrafast picosecond laser grooving was set up on the foundation of the two-temperature model coupled with the phase change model. Then, a series of simulations were executed to investigate the influence of laser parameters such as laser power, scanning speed and repetition rate on ultrafast picosecond laser grooving. Finally, a number of experiments were performed to verify the model. The results suggest that the laser power has an obvious influence on the groove width and depth because the heat-affected zone area and single-pulse laser energy increase when the laser power varies from 2 W to 5 W. Obvious impacts of scanning speed on the groove depth and quality are observed in the present simulation due to the variation of overlap between sequential pulses and pulse numbers. The groove width and quality depend on the repetition rate. This is because the increase in the repetition rate has a certain contribution to increasing the temperature of heat residue and pulse number. This research contributes to present theoretical guidance on laser grooving." @default.
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- W4310995931 date "2022-11-30" @default.
- W4310995931 modified "2023-10-16" @default.
- W4310995931 title "Numerical simulation and experiment on morphology control of grooves processed by a picosecond laser on TC11 titanium alloy" @default.
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- W4310995931 doi "https://doi.org/10.1088/1555-6611/aca159" @default.
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