中国激光, 2015, 42 (2): 0202007, 网络出版: 2015-01-20   

电磁搅拌作用下激光熔池电磁场、温度场和流场的数值模拟

Numerical Simulation of Electromagnetic flow, Temperature Field and Flow Field in Laser Molten Pool with Electromagnetic Stirring
作者单位
沈阳航空航天大学航空制造工艺数字化国防重点学科实验室, 辽宁 沈阳 110136
摘要
建立了描述电磁搅拌辅助激光熔凝过程的电磁场和流场的三维数学模型,采用有限元和有限体积结合的方法实现激光熔池中电磁场与温度场及流场的耦合模拟分析,研究了电磁场对激光熔池流场与温度场的影响。结果表明,电磁力在水平面上呈周向分布,切向电磁力的大小从熔池边缘到中心递减;在旋转磁场的作用下,熔池内温度略有降低,温度梯度减小;熔池内液体趋向旋转运动,速度场分布与电磁力相似;熔池纵向环流增加,使熔池内的熔体对流加剧,有利于传热,加快冷却;激励电流大小对电磁场和熔池流场有明显影响。为激光加工提供理论参考。
Abstract
A new three-dimensional mathematical model describing the electromagnetic stirring in the laser remelting is developed. The method combining the finite element and finite volume is used to deal with coupling electromagnetic field with flow field and temperature field. The influence of electromagnetic field on temperature field and flow field are analyzed. The results show that the electromagnetic force is distributed circumferentially at horizontal plane, the magnitude of the tangential force decreases from edge to center; Under the effect of rotating magnetic field, the temperature and temperature gradient in the molten pool are slightly reduced; Liquid in the molten pool tends to rotary motion, it is similar that the distribution of velocity field and electromagnetic force; The circulation in the longitudinal of molten pool increases, which is benefit for heat transfer of molten pool and accelerates cooling speed; The distributions of electromagnetic field and flow field are affected by the intensity of exciting current. It provides the theoretical reference for laser processing.
参考文献

[1] 陈永. 连铸结晶器电磁搅拌技术[J]. 钢铁钒钛, 2003, 2(24): 29-33.

    Chen Yong. Mold electromagnetic stirring technique for continous casting[J]. Iron Steel Vanadium Titanium, 2003, 2(24): 29-33.

[2] N Barman, P Kumar, P Dutta. Studies on transport phenomena during solidification of an aluminum alloy in the presence of liner electromagnetic stirring[J]. J Mater Process Technol, 2009, 209(18-19): 5912-5923.

[3] P G Tennyson, P Kumar, H Lakshmi, et al.. Experimental studies and phase field modecing of microstructure evolution during solidification with electromag netic stirring[J]. Transa of Nonferrous Metals Society of China, 2010, 20(S3): 774-780.

[4] 王宝峰, 李建超. 电磁搅拌技术在连铸生产中的应用[J]. 鞍钢技术, 2009, 1: 1-5.

    Wang Baofeng, Li Jianchao. Application of electromagnetic strirring technology in continuous casting[J]. Angang Technology, 2009, 1: 1-5.

[5] 王少华, 杨守杰, 房灿峰, 等. 电磁锖造对Al-Zn-Mg-Cu-Zr合金微观组织及晶内固溶度的影响[J]. 中国有色金属学报, 2009, 19(12): 2083-2089.

    Wang Shaohua, Yang Shoufeng, Fang Canfeng, et al.. Zhang Xingguo. Effects of electromagnetic casting on as-cast microstructures and solid solubility inside crystals of Al-Zn-Mg-Cu-Zr alloy[J]. The Chinese Journal of Nonferrous Metals, 2009, 12(19): 2083-2089.

[6] 陈建国, 江国利, 庞永刚. 结晶器电磁搅拌在小方坯连铸上的应用[J]. 北京科技大学学报, 2007, 1(29): 142-145.

    Chen Jianguo, Jiang Guoli, Pang Yonggang. Application of mold electromagnetic stirring in continuous casting middle billet[J]. Journal of University of Science and Technology Beijing, 2007, 1(29): 142-145.

[7] 张楠. 末端电磁搅拌对钢连铸坯成分偏析及缩松影响的模拟研究[D]. 大连: 大连理工大学, 2012.

    Zhang Nan. Simulated Research of Effect of Final Electromagnetic Stirring to Segregation and Shrinkage Porosity on Continuous Casting Billet[D]. Dalian: Dalian University of Technology, 2012.

[8] 余圣甫, 张友寿, 谢志强, 等. 旋转磁场对激光焊缝金属显微组织的影响[J]. 华中科技大学学报, 2005, 33(12): 24-26.

    Yu Shengpu, Zhang Youshou, Xie Zhiqiang, et al.. The influence of rotating magnetic field on the microscopic structure of welded metal by laser welding[J]. Journal of Huazhong University of Science and Technology, 2005, 33(12): 24-26.

[9] 余本海, 胡雪惠, 吴玉娥, 等. 电磁搅拌对激光熔覆WC-Co 基合金涂层的组织结构和硬度的影响及机理研究[J]. 中国激光, 2010, 37(10): 2672-2677.

    Yu Benhai, Hu Xuehui, Wu Yu′e, et al.. Studies of the effects and mechanism of electromagnetic stirring on the microstructures and hardness of laser cladding WC-Co based alloy coating[J]. Chinese J Lasers, 2010, 37(10): 2672-2677.

[10] 刘洪喜, 纪升伟, 蒋业华, 等. 旋转磁场辅助激光熔覆Fe60复合涂层的显微组织与性[J]. 中国激光, 2013, 40(1): 0103007.

    Liu Hongxi, Ji Shengwei, Jiang Yehua, et al.. Microstructure and property of Fe60 composite coatings by rotating magnetic field auxiliary laser cladding[J]. Chinese J Lasers, 2013, 40(1): 0103007.

[11] 齐鹏. 电磁搅拌技术在钛合金激光快速修复中的应用与研究[D]. 沈阳: 沈阳航空航天大学, 2013.

    Qi Peng. The Application and Research of Electromagnetic Stirring Technology in Titanium Alloy Laser Rapid Repair[D]. Shenyang: Shenyang Aerospace University, 2013.

[12] 于海岐, 朱苗勇. 圆坯结晶器电磁搅拌过程三维流场与温度场数值模拟[J]. 金属学报, 2008, 12(44): 1465-1473.

    Yu Haiqi, Zhu Miaoyong. 3D numerical simulation of flow field in a round billet continuous casting mold with continuous casting mold with electromagnetic stirring[J]. Acta Metallurgica Sinica, 2008, 12(44): 1465-1473.

[13] 袁尤智, 汪延峰, 刘晓瑞. 基于FLUENT的TIG 焊三维熔池热场与流场的数值模拟[J]. 江西学报, 2008, 26(6): 880-883.

    Yuan Youzhi, Wang Yanfeng, Liu Xiaorui. Numerical simulation of three-dimentional thermal field and flow field in TIG welding pools based on fluent[J]. Jiangxi Science, 2008, 26(6): 880-883.

[14] 石玗, 郭朝博, 许乐生, 等. 基于Fluent熔池内部受力的数值分析[J]. 电焊机, 2011, 41(9): 21-24.

    Shi Yu, Guo Chaobo, Xu Lesheng, et al.. Numerical simulation of the force in TIG welding pool based on Fluent[J]. Electric Welding Machine, 2011, 41(9): 21-24.

[15] 郭晓凤, 王承志, 张玉妥, 等. 铝合金半固态浆料制备过程的电磁-流体数值模拟[J]. 铸造设备研究, 2007, 1: 19-22.

    Guo Xiaofeng, Wang Chengzhi, Zhang Yutuo, et al.. The numerical simulation of magnetofluids in the course of semisolid slurry preparation of aluminum alloy[J]. Research Studies on Foundry Equipment, 2007, 1: 19-22.

[16] 张琦, 金俊泽, 王同敏, 等. 金属液在旋转电磁搅拌器作用下的流动分析[J]. 中国有色金属学报, 2007, 17(1): 98-104.

    Zhang Qi, Jin Junze, Wang Tongmin, et al.. Analysis of molten metal flow in rotating magnetic field[J]. The Chinese Journal of Nonferrous Metals, 2007, 17(1): 98-104.

[17] Roplekar J K,Dantzig J A. A study of solidification with a rotating magnetic field[J]. Int J Cast Metal Res, 2001, 14: 19-95.

[18] 陈静, 谭华, 杨海鸥, 等. 激光快速成形过程中熔池形态的演化[J]. 中国激光, 2007, 34(3): 442-446.

    Chen Jing, Tan Hua, Yang Haiou, et al.. Evolution of molten pool shape in the process of laser rapid forming[J]. Chinese J Lasers, 2007, 34(3): 442-446.

[19] 刘昊, 虞钢, 何秀丽, 等. 送粉式激光熔覆中瞬态温度场与几何形貌的三维数值模拟[J]. 中国激光, 2013, 40(12): 1203007.

    Liu Hao, Yu Gang, He Xiuli, et al.. Three-dimensional numerical simulation of transient temperature field and coating geometry in powder feeding laser cladding[J]. Chinese J Lasers, 2013, 40(12): 1203007.

[20] 刘振侠. 激光熔凝和激光熔覆的数学模型及数值分析[D]. 西安: 西北工业大学, 2003.

    Liu Zhenxia. Modeling and Numerical Simulation on Laser Remelting Cladding[D]. Xi′an: Northwestern Polytechnical University, 2003.

[21] 陈兴润, 张志峰, 徐骏, 等. 电磁搅拌法制备半固态浆料过程电磁场、流场和温度场的数值模拟[J]. 中国有色金属学报, 2010, 20(5): 932-945.

    Chen Xingrun, Zhang Zhifeng, Xu Jun, et al.. Numerical simulation of electromagnetic field, flow field and temperature field in semi-solid slurry preparation by electromagnetic stirring[J]. The Chinese Journal of Nonferrous Metals, 2010, 20(5): 932-945.

[22] 张喜燕, 赵永庆, 白晨光, 等. 钛合金及应用[M]. 北京: 化学工业出版社, 2005. 21-56.

    Zhang Xiyan, Zhao Yongqing, Bai Chenguang, et al.. Titanium Alloy and Application[M]. Beijing: Chemical Industry Press, 2005. 21-56.

[23] 邹武装. 钛手册[M]. 北京: 化学工业出版社, 2012. 1-78.

    Zhou Wuzhuang. Titanium Handbook[M]. Beijing: Chemical Industry Press, 2012. 1-78.

[24] 李世峰, 陈素玲. 基于Gauss热源模型的BT20钛合金管口激光焊接数值模拟[J]. 航空制造技术, 2009, 5: 85-89.

    Li Shifeng, Chen Suling. Numerical simulation of laser welding for BT20 Titanium alloy mouthpiece by using the gauss heat-source model[J]. Aeronautical Manufacturing Technology, 2009, 5: 85-89.

[25] 赵永庆, 陈永楠, 张学敏, 等. 钛合金相变及热处理[M]. 长沙: 中南大学出版社, 2012. 3-25.

    Zhao Yongqing, Cheng Yongnan, Zhang Xuemin, et al.. Titanium Alloy Phase Change and Heat Treatment[M]. Changsha: Central South University Press, 2012. 3-25.

[26] 卢特金, 威廉姆斯. 钛[M]. (第2版). 雷霆译. 北京: 冶金工业出版社, 2011. 1-48.

    G Lutjering, J C Williams. Titanium[M]. (2nd edition) Lei Ting Transl.. Beijing: Metallurgical Industry Press, 2011. 1-48.

[27] 钦兰云, 杨光, 卞宏友, 等. 电磁搅拌辅助激光沉积成形钛合金试验研究[J]. 中国激光, 2014, 41(3): 0303004.

    Qin Lanyun, Yang Guang, Bian Hongyou, et al.. Experimental study on electromagnetic stirring assisted laser metal deposition titanium alloy[J]. Chinese J Lasers, 2014, 41(3): 0303004.

[28] 许华. 激光熔覆硬质合金及电磁搅拌辅助激光熔覆硬质合金的研究[D]. 武汉: 华中科技大学, 2005. 1-25.

    Xu Hua. Investigation on Laser Cladding Hard Alloy and Laser Cladding Hard Alloy with Electromagnetic Stirring[D]. Wuhan: Huazhong University of Science and Technology, 2005. 1-25.

[29] 张琦, 王进, 褚忠. 电磁搅拌金属熔体数值模拟的研究进展[J]. 材料导报, 2011, 8(25): 135-144.

    Zhang Qi, Wang Jin, Chu Zhong. Development of the numerical simulation of the molten metal under electromagnetic stirring[J]. Materials Review, 2011, 8(25): 135-144.

王维, 刘奇, 杨光钦, 兰云, 薛雄. 电磁搅拌作用下激光熔池电磁场、温度场和流场的数值模拟[J]. 中国激光, 2015, 42(2): 0202007. Wang Wei, Liu Qi, Yang Guang, Qin Lanyun, Xue Xiong. Numerical Simulation of Electromagnetic flow, Temperature Field and Flow Field in Laser Molten Pool with Electromagnetic Stirring[J]. Chinese Journal of Lasers, 2015, 42(2): 0202007.

本文已被 5 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!