Advanced Search
Zhu Daqing, Zuo Duluo, Li Shimin. 2D transient model for rapid laser remelt[J]. LASER TECHNOLOGY, 2003, 27(2): 90-93.
Citation: Zhu Daqing, Zuo Duluo, Li Shimin. 2D transient model for rapid laser remelt[J]. LASER TECHNOLOGY, 2003, 27(2): 90-93.

2D transient model for rapid laser remelt

More Information
  • Received Date: March 25, 2002
  • Revised Date: August 19, 2002
  • Published Date: March 24, 2003
  • A two-dimensional transient model for high speed laser remelt was presented by solving the heat conduction and convection equations through finite element method and multigrid method.The time dependent physical process of laser remelt under CW laser and pulse laser with high scanning speed (HSP)(2m/s) and lowscanning speed (LSP)(0.2m/s)were simulated.The result shows that the scanning speed has big impact on the streamline and the distribution of the composition.It also shows that the same area on surface may be heated by multi-pulses of laser under LSP while it only be heated by one pulse under HSP.The result indicates that during laser remelt,the surface of the melt pool changes,the middle hollows and the edge reises.In addition,the shape,the size,the average cooling rate of the pool and the cooling rate at the edge of the pool can be obtained through the results.These cooling rates are useful to analyze the microstructure.
  • [1]
    徐恒钧.北京工业大学学报,1998,24(3):130~136.
    [2]
    Cline H E,Anthony T R.J A P,1977,48(9):3895~3900.
    [3]
    Kou S,Hsu S C,Mehrebian R.Metall Trans B,1981,B12(3):33~45.
    [4]
    Chan C,Mazumder J,Chen M M.Metall Trans A,1984,A15(2):2175~2184.
    [5]
    Chande T,Mazumder J.J A P,1985,57(6):2226~2232.
    [6]
    Kou S,Wang Y H.Metall Trans A,1986,A17(12):2265~2270.
    [7]
    Chan C,Mazumder J,Chen M M.Mater Sci Technol,1987,3(4):306~311.
    [8]
    Chan C,Mazumder J,Chen M M.J A P,1988,64(11):6166~6174.
    [9]
    Hoadley A,Rappaz M.Metall Trans B,1991,B22(2):101~109.
    [10]
    Mazumder J.Opt Engng,1991,30(8):1208~1219.
    [11]
    Picasso M,Hoadley A F A.Int J Num Meth Heat Fluid Flow,1994,4:61~83.
    [12]
    Ravindran K,Srinivasan J,Marathe A G.Mech Res Commun,1995,22(3):291~304.
    [13]
    Yilbas B S.Int J Heat Mass Transfer,1997,40(5):1131~1143.
    [15]
    Tuerk S.Int J Num Meth in Fluids,1994,18:71~105.
    [16]
    Zhu D Q,Zuo D L,Li Sh M.Laser Tech,2000,24(1):24~26.
  • Related Articles

    [1]YI Hengyu, QI Yu, HUANG Jijin. Development of ship-based laser weapons system[J]. LASER TECHNOLOGY, 2015, 39(6): 834-839. DOI: 10.7510/jgjs.issn.1001-3806.2015.06.022
    [2]DAI Bao-jiang, CHEN Feng, ZHANG Dong-shi, DU Guang-qing, MENG Xiang-wei. 飞秒激光制备波导型光合波器的数值模拟[J]. LASER TECHNOLOGY, 2012, 36(2): 251-254,264. DOI: 10.3969/j.issn.1001-3806.2012.02.029
    [3]Lou Qihong, Zhou Jun, Wang Zhijiang. Analysis of high-power fiber laser weapons[J]. LASER TECHNOLOGY, 2003, 27(3): 161-165.
    [4]Ren Guoguang. Information link analysis of airborne laser weapons[J]. LASER TECHNOLOGY, 2002, 26(4): 241-243,269.
    [5]Ren Guoguang, Huang Yunian. Developments and challenges for American high-energy laser weapons(Part 2)[J]. LASER TECHNOLOGY, 2001, 25(5): 321-328.
    [6]Ren Guo-guang, Huang Yu-nian. Developing strategic of American high power laser weapons(part1)[J]. LASER TECHNOLOGY, 2001, 25(4): 241-246.
    [7]Ren Guo-guang, Huang Yu-nian. Recent development of the powerful laser weapon technologies[J]. LASER TECHNOLOGY, 1999, 23(4): 193-201.
    [8]Ren Guoguang. Analysis of Nautilus laser weapon[J]. LASER TECHNOLOGY, 1997, 21(6): 321-326.
    [9]Ren Guoguang. Status and future of American high power laser weapons[J]. LASER TECHNOLOGY, 1996, 20(5): 257-262.
    [10]Ren Guo-guang. The laser weapons of shifting from strategic defense to theatre defense[J]. LASER TECHNOLOGY, 1994, 18(3): 129-133.

Catalog

    Article views (2) PDF downloads (14) Cited by()

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return