Temperature field analysis and experiment study about paint irradiated by moving laser based on FEM
-
摘要: 为了研究脉冲激光去除金属表面漆膜的过程,采用有限元法建立模型,模拟了喷有漆膜的不锈钢样品表面在移动脉冲激光作用下的温度场,研究了不同时刻漆膜表面的温度场分布以及激光参量对漆膜表面温度场的影响,并做了相关对比实验。结果表明,漆膜表面温度随激光源的移动而变化,温度场呈现带尾的彗星状;漆膜表面的温度随激光能流密度和激光重复率的增加而线性增加,随着扫描速率的增加而指数递减;激光能流密度和激光重复率越大而激光扫描速率越小时,激光除漆效率越高;温度的累积效应可以提高除漆的效率。该结果可以为实际激光除漆过程中激光参量的选取提供参考。Abstract: In order to analyze the process of laser removal of paint on metal surface, the model was established by using finite element method (FEM). Temperature distribution on stainless steel surface with paint film irradiated by moving laser was simulated. The relative and comparative experiment was done. The results show that, temperature of paint film changes with the movement of laser source. Temperature distribution has a rendering tail like comet-shape. The peak temperature of paint film increases linearly with the increase of laser fluence and laser repetition rate, and decreases exponentially with the increase of scanning rate. The higher the laser fluence and repetition rate, the higher the paint removal efficiency. Cumulative effect of temperature can improve the efficiency of removing paint. The results can give references to select laser parameters in the process of laser paint removal.
-
-
[1] NEVRS P, ARRONTE M, VILAR R, et al. KrF excimer laser dry and steam cleaning of silicon surfaces with metallic particulate contaminants[J]. Applied Physics, 2002,A74(2):192-194.
[2] ASMUS J F. Non-divestment laser applications in art conservation[J]. Journal of Cultural Heritage,2003,4(s1):289-293.
[3] ZHU Y F, TAN R Q. Graffiti removal-new applications of laser cleaning[J].Laser Infrared, 2011, 41(8):840-844(in Chinese).
[4] ZHAO Z M. The application of laser cleaning technology in microelectronics industry field[J]. Cleaning Technology, 2004,2(8):29-34(in Chinese).
[5] BARLETTA M, GISARIO A, TAGLIAFERRI V. Advance in paint stripping from aluminium substrates[J]. Journal of Materials Processing Technology, 2006, 173(2):232-239.
[6] SCHWEIZER G, WERNER L. Industrial 2kW TEA CO2 laser for paintstripping of aircraft[J]. Proceedings of the SPIE,1995, 2502:57-62.
[7] CHEN G X, KWEE T J, TAN K P, et al. Laser cleaning of steel for paint removal[J]. Applied Physics, 2010, A101(2):249-253.
[8] BRYGO F, DUTOUQUET C, le GUERN F, et al. Laser fluence, repetition rate and pulse duration effects on paint ablation[J]. Applied Surface Science, 2006, 252(6):2131-2138.
[9] BRYGO F, SEMEROK A, OLTRA R, et al. Laser heating and ablation at high repetition rate in thermal confinement regime[J]. Applied Surface Science, 2006, 252(23):8314-8318.
[10] TEULE R, SCHOLTEN H, van den BRINK O F, et al. Controlled UV laser cleaning of painted artworks:a systematic effect study on egg tempera paint samples[J]. Journal of Cultural Hervitage, 2003,4(s1):209-215.
[11] CIOFINI D, OSTICIOLI I, PAVIA A, et al. Removal of overpaintings from easel paintings using LQS Nd:YAG laser[J]. Applied Physics, 2014, A117(1):341-346.
[12] ZHOU G L, KONG L B, SUN H Y, et al. Finite element analysis of temperature field based on ANSYS in laser cleaning mold[J]. Manufacturing Automation, 2008, 30(9):90-92(in Chinese).
[13] MENG Q R, ZOU Y, JIA S K, et al. Effect of laser remelting on heat insulation performance of plasma sprayed ZrO2-20%Y2O thermal barrier coatings[J]. High Power Laser and Particle Beams, 2014, 26(7):079001(in Chinese).
[14] YANG J, HAN J H, DUAN T, et al. Mechanical analysis of paint film stripping from aluminum plate surface by means of nanosecond laser[J]. Laser Technology, 2013, 37(6):718-722(in Chinese).
[15] XIAN H, FENG G Y, WANG S P, et al. Laser transmission model in paint and related experimental[J]. Journal of Sichuan University(Natural Science Edition), 2012, 49(5):1036-1042(in Chinese).
[16] YUAN W, LI Z G, CAI Y G, et al. Simulation of ANSYS-based laser cutting temperature field[J]. Journal of Changchun University, 2013, 23(12):1561-1564(in Chinese).
[17] JIAO J, WANG X. A numerical simulation of machining glass by dual CO2-laser beams[J]. Optics Laser Technology, 2008, 40(2):297-301.
[18] DONG Z B, WEI H Y, LIU R P, et al. The simulation of welding temperature at 3-D field on the stainless steel[J]. Transactions of the China Welding Institution, 2004, 25(2):9-14(in Chinese).
[19] FENG Y S, LI X X. ANSYS numerical simulation of temperature field in silica glass irradiated by pulsed laser[J]. Physics Experimentation, 2012, 32(2):35-38(in Chinese).
[20] WEN Y, YAN J X. The simulation study of interaction of laser with material based on ANSYS[J]. Optical Technique, 2005, 31(s1):250-253(in Chinese).
[21] YANG S M, TAO W Q. Heat transfer[M]:4rd ed. Beijing:Higher Education Press,1998:555-556(in Chinese).
[22] SONG F, ZOU W F, TIAN B, et al. Model of one-dimensional thernal stress applied in paint removal by Q switched short pulse laser[J]. Chinese Journal of Lasers, 2008, 34(11):1577-1581(in Chinese).
[23] JIAO J, WANG X. Cutting glass substrates with dual-laser beams[J]. Optics and Lasers in Engineering, 2009, 47(7/8):860-864.
计量
- 文章访问数: 5
- HTML全文浏览量: 0
- PDF下载量: 8
下载: