摘要
激光中心温度探测是激光领域的一个重要课题,直接影响着激光在工程技术中的应用。利用XL-800WF光纤传输多功能脉冲激光加工系统,照射厚钢板,得到钢板的熔化图。通过显微镜测量熔斑的直径,从而计算液态钢的凝固时间。根据激光温度的扩散原理,建立理想条件下钢板的热传导方程,模拟出钢板的温度演化规律。结合凝固时间,推导了XL-800WF光纤传输多功能脉冲激光中心温度的理论值。
The temperature detection of laser is an important subject in the field of laser,which affects its applications in engineering directly.The XL-800 WF multi-function laser welding machine was used to irradiate the thick steel plate and the melting graphs were recorded.From the micrographs,we can measure the melting spot size and calculate the solidification time.According to the principle of the spread of laser irradiation temperature,we have built the heat conduction equation under ideal conditions and simulated the temperature evolution.Combining with the solidification time,we have derived the theoretical temperature value of XL-800 WF laser.
引文
[1]李亚江,李嘉宁.激光焊接/切割/熔覆技术[M].北京:化学工业出版社,2016.(Li Yajiang,Li Jianing.Laser welding/cutting/cladding.Beijing:Chemical Industry Press,2016)
[2]史春元,于启湛.异种金属的焊接[M].北京:机械工业出版社,2012.(Shi Chunyuan,Yu Qizhan.Welding of dissimilar metals.Beijing:China Machine Press,2012)
[3]Shi Wenqing,Wang Wenhua,Huang Yaling.Laser micro-welding of Cu-Al dissimilar metals[J].Int J Adv Manuf Technol,2015,85(1):185-189.
[4]Pierpaolo C,Antonello A,Palazzo G S,et al.Microstructural aspects in Al-Cu dissimilar joining by FSW[J].Int J Adv Manuf Technol,2015,79(5):1109-1116.
[5]黄昆.固体物理[M].北京:高等教育出版社,2016.(Huang Kun.Solid state physics.Beijing:Higher Education Press,2016)
[6]徐洲,赵连城.金属固态相变原理[M].北京:科学出版社,2013.(Xu Zhou,Zhao Liancheng.Metal solid phase change principle.Beijing:Science Press,2013)
[7]Mannabosco I,Forro P,Bonollo F,et al.An investigation of fusion zone microstructures in electron beam welding of copper-stainless steel[J].Materials Science and Engineering A,2006,424(1):163-173.
[8]Olabi A G,Alsinani F O,Alabdulkarim A A,et al.Optimizing the CO2laser welding process for dissimilar materials[J].Opt Lasers Eng,2013,51(1):832-839.
[9]毕娟,张喜和,倪晓武,等.激光作用双层材料产生瞬态温度场的数值模拟[J].光电子技术,2010,30(1):33-36.(Bi Juan,Zhang Xihe,Ni Xiaowu,et al.Numerical simulation of transient temperature field induced by the action of laser on double layer materials.Optoelectronic Technology,2010,30(1):33-36)
[10]周杰,马增辉,逄熹睿,等.脉冲激光辐照金属材料表面瞬态温度场研究[J].应用激光,2010,30(1):1-5.(Zhou Jie,Ma Zenghui,Pang Xirui,et al.Research on transient state temperature field of the surface of metal material under pulsed laser radiation.Applied Laser,2010,30(1):1-5)
[11]王馨露.激光温度场分布计算研究[D].长春:东北师范大学,2014:10-13.(Wang Xinlu.Study on laser temperature distribution calculation.Changchun:Northeast Normal University,2014:10-13)
[12]王铎,霍文灿,张锦生.液态模锻的凝固时间及其方程[J].金属科学与工艺,1987,6(4):85-91.(Wang Duo,Huo Wencan,Zhang Jinsheng.Solidification time and its equation in squeezing casting.Metal Science&Technology,1987,6(4):85-91)
[13]李永强,熊守美,彭劲松.凝固过程温度场的分区域计算[J].清华大学学报,2003,43(2):211-213.(Li Yongqiang,Xiong Shoumei,Peng Jinsong.Zone partitioning calculational technique for solidification simulation during sand casting.Tsinghua University,2003,43(2):211-213)
[14]周丽丽.液态金属铅凝固过程中微观结构演变特性的模拟研究[D].长沙:湖南大学,2012:27-33.(Zhou Lili.Simulation study on solidification processes and microstructure evolution characteristics of liquid metal lead.Changsha:Hunan University,2012:27-33)
[15]程家增.爆破过程高速摄像方法研究[D].武汉:武汉理工大学,2010:40-49.(Cheng Jiazeng.The research of high-speed photograph technique in blast engineering.Wuhan:Wuhan University of Technology,2010:40-49)
[16]孟宣宣.基于高速摄像技术的光纤激光焊接过程研究[D].武汉:华中科技大学,2011:32-37.(Meng Xuanxuan.Study on the process of fiber laser welding based on the technology of high-speed camera.Wuhan:Huazhong University of Science and Technology,2011:32-37)
[17]刘永志.温度场的有限元数值模拟及其在塑件和磨具冷却分析中的应用[D].郑州:郑州大学,2003:34-38.(Liu Yongzhi.The numerical simulation on temperature field by FEM and its application to the cooling analysis of plastic part and mould.Zhengzhou:Zhengzhou University,2003:34-38)
[18]毕艳霞.T型接头焊接温度场与应力场的数值模拟[D].杭州:浙江大学,2007:20-27.(Bi Yanxia.Numerical simulation of welding temperature field and stress field of T joint.Hangzhou:Zhejiang University,2007:20-27)
[19]薛志清.铜-铝异种金属激光熔池流体动力学模拟与焊缝组织特征研究[D].天津:天津大学,2013:50-68.(Xue Zhiqing.Fluid dynamics simulation of laser welded Cu/Al molten pool and research on joint microstructure characteristics.Tianjin:Tianjin University,2013:50-68)
[20]Charles Kittel.Introduction to solid state physics[M].Wiley:Wiley Press,2010.
[21]裴旭,吴建华.金属材料脉冲激光辐照瞬态温度场数值模拟研究[J].激光技术,2012,36(6):828-831.(Pei Xu,Wu Jianhua.Numerical simulation of the transient temperature field of metal pulsed laser irradiation.Laser Technology,2012,36(6):828-831)