激光冲击波作用下3003H16铝合金板料层裂的研究

黄利伟; 龙昆; 黄宇; 郭海平; 丰琅; 周俊; 马睿佳

doi:doi:10.7510/jgjs.issn.1001-3806.2013.02.032

激光技术, 2013, 37 (2): 270, 网络出版: 2013-03-27

激光冲击波作用下3003H16铝合金板料层裂的研究

Research of spalling on 3003H16 aluminium alloy sheet under laser shock wave

论文大纲

黄利伟 ^*龙昆黄宇郭海平丰琅周俊马睿佳

作者单位

江苏大学机械工程学院, 镇江 212013

激光技术层裂有限元激光冲击波 3003H16铝合金 laser technique spalling finite element laser shock wave 3003H16 aluminium alloy

摘要

为了得到工艺参量对层裂的影响, 运用有限元模拟的方法, 采用最大拉应力瞬时断裂准则来判断板料是否发生层裂, 并对各参量对层裂的影响进行了分析; 进行了激光冲击成形试验, 用电子扫描显微镜对冲击后的试样进行观察, 并运用应力波传播分析了层裂的产生、发展、形成。结果表明, 层裂易发生在激光冲击区域内, 其次是在光斑边缘处, 而在冲击区域外不可能发生层裂; 脉冲宽度、峰值压力和板料厚度对层裂发生的位置影响较大, 而光斑直径对层裂发生的位置几乎没有影响。这对激光冲击成形的发展具有指导意义。

Abstract

In order to understand the influence of the technological parameters on spalling, it was analyzed by means of the finite element simulation. The maximum tensile stress instantaneous fracture criterion was used to check spalling happened or not. Then, the experiment of laser shock forming was carried out. The shocked samples were surveyed with a scanning electron microscope. The emerging, developing and forming of the spalling were analyzed. The results show that the spalling is susceptible to the shock region, and then the spot edge. Spalling will never happen outside the shock region. The influence of pulse width, peak pressure and sheet thickness affect the position of spalling significantly. However, the spot diameter affects it little. These have guiding significance to the development of the laser shock forming.

参考文献

[1] ZHOU J Z, ZHANG Y K, YANG J C, et al. New technique onplastic forming of metal sheet by laser shock wave［J］. China Mecha-nical Engineering, 2002,13( 22) : 1938-1940(in Chinese).

[2] O’KEEFE J D, SKEEN C H, YORK C M. Laser-induced deformation modes in thin metal targets［J］. Journal of Applied Physics, 1973, 44(10):4622-4626.

[3] WILLIAM B, ROBERT B. Finite element simulation of laser shock peening［J］. International Journal of Fatigue,1999,21(7):719-724.

[4] HACKEL L, HARRIS F. Contour forming of metals by laser peening: US, WO01/05549A2［P］.2002-06-25.

[5] UNTERNAHRER J R, LOTSHAW W T, STAVER P R. Shot-pulse high-peak laser shock peening: US,252620［P］.2002-07-28.

[6] THORD T S, KAHLEN F J, ARAVINDA K. Temperatures, pressures, stresses during laser shock processing［J］. Optics and Lasers in Engineering,2003,39(1):51-71.

[7] FAN Y, WANG Y, VUKELIC S, et al. Wave solid interactions in laser-shock-induced deformation processes［J］. Journal of Applied Physics,2005,98(10):1-11.

[8] LIU X J. Experimental study for micro laser peen forming of 8011 aluminium alloy foil[D]. Ji’nan: Shandong University,2009:5-6(in Chinese).

[9] CHENG G J, DANIEL P. Characterizations on microscale laser dynamic forming of metal foil［C］//International Conference on Manufacturing Science and Engineering. Ypsilanti, USA: Manufacturing Engineering Division,2006:8-11.

[10] HONG X, WANG S B, GUO D H, et al. Confining medium and absorptive overlay: their effects on a laser-induced shock wave［J］. Optics and Lasers in Engineering,1998,29(6):447-455.

[11] JIANG Y F, YING C S, LIU C R, et al. Effect of laser power density on laser shock formability of sheet metal［J］. Laser Technology,2010,34(1):95-98(in Chinese).

[12] TANG Z Z, JIANG Y F, LI Z F, et al.The effect of spot model on the formability of laser shock forming［J］. Manufacturing Technology and Machine Tool, 2011(10):101-104(in Chinese).

[13] YUAN G D, SHI D Q, JIANG Y F, et al. Study on residual stress distribution of laser shock forming metal-sheet［J］. Laser Technology,2010,34(3):303-305(in Chinese).

[14] JIANG Y F,SHI C Y, REN X D, et al. Investigation on fracture criterion of sheet-metal based onlaser shock forming［C］//The 3rd International Conference on Rapidprototyping and Manufacturing and the 2rd International for Bio-manufacturing. Beijing: Manufacturing Engineering Division,2008:39.

[15] ZHAO Y T, LIN J W, SHI L.Research of spalling under impulse loading［J］. Rock and Soil Mechanics, 2011,32(2):122-126(in Chinese).

[16] ZHANG X Q, ZHOU J Z, GU Y Y, et al. Experimental study on aluminum target dynamic damage under laser shock wares loading[J]. Transactions of the Chinese Society of Agricultural Machinery,2006,37(3):122-125(in Chinese).

黄利伟, 龙昆, 黄宇, 郭海平, 丰琅, 周俊, 马睿佳. 激光冲击波作用下3003H16铝合金板料层裂的研究[J]. 激光技术, 2013, 37(2): 270. HUANG Li-wei, LONG Kun, HUANG Yu, GUO Hai-ping, FENG Lang, ZHON Jun, MA Rui-jia. Research of spalling on 3003H16 aluminium alloy sheet under laser shock wave[J]. Laser Technology, 2013, 37(2): 270.

激光冲击波作用下3003H16铝合金板料层裂的研究

关于本站 Cookie 的使用提示

全站搜索

激光冲击波作用下3003H16铝合金板料层裂的研究

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索