High Power Laser and Particle Beams, Volume. 33, Issue 9, 091003(2021)
Simulation analysis of ultrasonic vibration for laser ablation of aluminum surface temperature field
Figures & Tables(8)
Fig. 1. Schematic diagram of conventional laser lap rate calculation
Fig. 2. Schematic diagram of lap joint of ultrasonic vibration composite laser heat affected zone
Fig. 3. The temperature distribution and pit morphology of the double laser spot
Fig. 4. Composite ultrasonic vibration double pit temperature line diagram
Table 1. Thermophysical parameters of aluminum
View tableView in ArticleTable 1. Thermophysical parameters of aluminum
temperature/℃ specific heat capacity/（J/（kg·K）） thermal conductivity/ （W/（m·K）） density/ （kg/m3） liquidus temperature/℃ solidus temperature/℃ 20 899.56 236.57 2700 660.2 660.2 200 983.24 238.66 2700 660.2 660.2 500 1121.3 221.49 2700 660.2 660.2 660 1196.6 212.7 2700 660.2 660.2
Table 2. Common convection heat transfer coefficient range
View tableView in ArticleTable 2. Common convection heat transfer coefficient range
condition forced convection of gas/（W/（m2∙℃）） natural air convection/（W/（m2∙℃）） forced convection of water/（W/（m2∙℃）） kerosene natural convection/（W/（m2∙℃）） coefficient values 20−100 3−10 1000−1500 500−1000
Table 3. Calculation parameters and results of lap joint rate
View tableView in ArticleTable 3. Calculation parameters and results of lap joint rate
scanning speed/（mm/s） amplitude/μm frequency/kHz initial phase angle/（°） diameter of heat affected zone/μm overlap rate/% 200 0 0 0 50 74.71 200 10 15 0 50 64.47 400 10 15 0 50 45.02 600 10 15 0 50 25.22 800 10 15 0 50 8.58 1000 10 15 0 50 0
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Yan Wang, Jie Yin, Yinghuai Dong, Yuehua Li, Zizheng Cheng, Jingnan Zhao, Shuo Yang. Simulation analysis of ultrasonic vibration for laser ablation of aluminum surface temperature field[J]. High Power Laser and Particle Beams, 2021, 33(9): 091003
Paper Information
Category: High Power Laser Physics and Technology
Received: Apr. 25, 2021
Accepted: --
Published Online: Oct. 9, 2021
The Author Email: Yinghuai Dong (dongyh@tust.edu.cn)
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