首页 > 论文 > 中国激光 > 45卷 > 1期(pp:102003--1)

填材对激光焊接匙孔与熔池三维瞬态行为的影响

Effect of Filler Metal on Three-Dimensional Transient Behavior of Keyholes and Molten Pools in Laser Welding

  • 摘要
  • 论文信息
  • 参考文献
  • 被引情况
  • PDF全文
分享:

摘要

建立了填材送入过程的三维瞬态激光焊接热-流耦合模型与组合热源模型, 在模型中引入了反冲压力、表面张力、热浮力、重力等焊接驱动力。采用流体体积方法追踪匙孔的气-液界面,研究了填材对匙孔三维形态和熔池流动行为的影响。研究结果表明, 在激光填丝焊中, 填材不利于维持匙孔的稳定性, 容易出现匙孔底部闭合的情况; 在激光自熔焊过程中, 匙孔壁面呈现由内向外和由下向上的流动趋势, 这有利于匙孔的稳定张开。

Abstract

The three-dimensional transient laser welding heat-flow coupling model for the filler metal feeding process and the combined heat source model are established, in which the welding driving forces, such as recoil pressure, surface tension, thermal buoyancy and gravity, are introduced. The volume-of-fluid method is used to track the gas-liquid interfaces of keyholes, and the effect of filler metal on the three-dimensional shape of keyholes and the flow behavior of molten pools is studied. The influence mechanism of the filler metal filling on the keyhole stability is analyzed. The research results show that the filler metal filling is unfavorable to the stability of keyholes and the keyhole bottom is prone to close. In the autogenous laser welding process, a flow from inside to outside and from bottom to top appears on the keyhole walls, which is favorable to the stable opening of keyholes.

Newport宣传-MKS新实验室计划
补充资料

中图分类号:TG456.7

DOI:10.3788/cjl201845.0102003

所属栏目:激光制造

基金项目:河南省自然科学基金(162300410191)、河南省高等学校重点科研项目(17A430021)、华北水利水电大学高层次人才科研启动费(201705006)、华北水利水电大学大学生创新创业训练计划项目(2017XB110)

收稿日期:2017-07-18

修改稿日期:2017-09-12

网络出版日期:--

作者单位    点击查看

彭进:华北水利水电大学机械学院, 河南 郑州 450045哈尔滨工业大学先进焊接与连接国家重点实验室, 黑龙江 哈尔滨 150001
胡素梦:华北水利水电大学机械学院, 河南 郑州 450045
王星星:华北水利水电大学机械学院, 河南 郑州 450045
王建升:华北水利水电大学机械学院, 河南 郑州 450045
张芙蓉:哈尔滨工业大学先进焊接与连接国家重点实验室, 黑龙江 哈尔滨 150001

联系人作者:彭进(pengjin1985120@163.com)

备注:彭进(1984-), 男, 博士, 讲师, 主要从事激光焊接方面的研究。

【1】Chen G Y, Xia H L, Zhou C, et al. Study on the mechanism of root humping of laser welding with high power fiber laser[J]. Chinese Journal of Lasers, 2015, 42(2): 0203004.
陈根余, 夏海龙, 周聪, 等. 高功率光纤激光焊接底部驼峰的机理研究[J]. 中国激光, 2015, 42(2): 0203004.

【2】Peng J, Li L Q, Zhang R Z, et al. Study on aluminum alloy laser welding with pre-melted liquid filler by arc[J]. Laser & Optoelectronics Progress, 2017, 54(6): 061404.
彭进, 李俐群, 张瑞珠, 等. 铝合金电弧预熔丝激光焊工艺特性研究[J]. 激光与光电子学进展, 2017, 54(6): 061404.

【3】彭进, 李俐群, 林尚扬, 等. 激光液态填充焊的填材熔化与过渡稳定性[J]. 焊接学报, 2016, 37(7): 9-12.

【4】Qiao J N, Wang Q M, Zou J L, et al. Microstructure and mechanical property of A7N01 aluminum alloy joints by fiber laser-variable polarity TIG hybrid welding with filler wire[J]. Chinese Journal of Lasers, 2016, 43(9): 0902001.
乔俊楠, 王启明, 邹江林, 等. 光纤激光-变极性TIG复合填丝焊接A7N01铝合金接头的组织与力学性能[J]. 中国激光, 2016, 43(9): 0902001.

【5】Peng J, Li L Q, Lin S Y, et al. High-speed X-ray transmission and numerical study of melt flows inside the molten pool during laser welding of aluminum alloy[J]. Mathematical Problems in Engineering, 2016, 2016: 1-13.

【6】Kabir A S H, Cao X, Wanjara P, et al. Use of filler wire for laser welding of Ti-6Al-4V[J]. Canadian Metallurgical Quarterly, 2012, 51(3): 320-327.

【7】Wu Y,Cai Y, Wang H, et al. Investigation on microstructure and properties of dissimilar joint between SA553 and SUS304 made by laser welding with filler wire[J]. Materials & Design, 2015, 87: 567-578.

【8】Yu Y C, Wang C M, Hu X Y, et al. Porosity in fiber laser formation of 5A06 aluminum alloy[J]. Journal of Mechanical Science and Technology, 2010, 24(5): 1077-1082.

【9】Mei H H, Xiao R S, Zuo T C. The study on laser welding with filler wire[J]. Journal of Beijing Polytechnic University, 1996, 22(3): 38-42.
梅汉华, 肖荣诗, 左铁钏. 采用填充焊丝激光焊接工艺的研究[J]. 北京工业大学学报, 1996, 22(3): 38-42.

【10】Wang H, Shi Y W, Gong S L. Numerical simulation of laser keyhole welding processes based on control volume methods[J]. Journal of Physics D: Applied Physics, 2006, 39(21): 4722-4730.

【11】Zhao H Y, Niu W C, Zhang B, et al. Modelling of keyhole dynamics and porosity formation considering the adaptive keyhole shape and three-phase coupling during deep-penetration laser welding[J]. Journal of Physics D: Applied Physics, 2011, 44(48): 485302.

【12】Lu F G, Li X B, Li Z G, et al. Formation and influence mechanism of keyhole-induced porosity in deep-penetration laser welding based on 3D transient modeling[J]. International Journal of Heat and Mass Transfer, 2015, 90: 1143-1152.

【13】Cho J H, Na S J. Three-dimensional analysis of molten pool in GMA-laser hybrid welding[J]. Welding journal, 2009, 80(2): 35-44.

【14】Rao Z H, Liao S M, Tsai H L. Modelling of hybrid laser-GMA welding: Review and challenges[J]. Science and Technology of Welding and Joining, 2011, 16(4): 300-305.

【15】Otto A, Schmidt M. Towardsa universal numerical simulation model for laser material processing[J]. Physics Procedia, 2010, 5: 35-46.

【16】Voller V R, Prakash C. A fixed grid numerical modeling methodology for convection-diffusion mushy region phase-change problems[J]. International Journal of Heat and Mass Transfer, 1987, 30(8): 1709-1719.

【17】Peng J, Li F Q, Li L Q, et al. Comparative Study on laser welding with pre-melting liquid filler and conventional filler wire[J]. Chinese Journal of Lasers, 2015, 42(1): 0103003.
彭进, 李福泉, 李俐群, 等. 激光液态填充焊与常规激光填丝焊特性的对比研究[J]. 中国激光, 2015, 42(1): 0103003.

【18】Kawahito Y, Mizutani M, Katayama S. Elucidation of high-power fibre laser welding phenomena of stainless steel and effect of factors on weld geometry[J]. Journal of Physics D: Applied Physics, 2007, 40(19): 5854-5859.

引用该论文

Peng Jin,Hu Sumeng,Wang Xingxing,Wang Jiansheng,Zhang Furong. Effect of Filler Metal on Three-Dimensional Transient Behavior of Keyholes and Molten Pools in Laser Welding[J]. Chinese Journal of Lasers, 2018, 45(1): 0102003

彭进,胡素梦,王星星,王建升,张芙蓉. 填材对激光焊接匙孔与熔池三维瞬态行为的影响[J]. 中国激光, 2018, 45(1): 0102003

您的浏览器不支持PDF插件,请使用最新的(Chrome/Fire Fox等)浏览器.或者您还可以点击此处下载该论文PDF