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plasticity of the laser butt-welded plate can meet the requirement of superplastic forming. Key words: Inconel 718 alloy; laser welding; high temperature plasticity; microstructure 1 Introduction... superalloy with butt-welding seam has great influence on the manufacture of multi-sheet cylinder sandwich structure. In recent years, research works on laser butt-welded plate of Inconel 718 superalloy......
; 文献标识码:A Microstructure of Be/AlSi/Be welding joint by laser LI Yu-bin, MENG Da-qiao, LIU Ke-zhao, XIE Zhi-qiang, LI Sheng-he (China Academy of Engineering Physics, Mianyang 621900, China) Abstract: Using AlSi alloy as transition material, beryllium with beryllium was welded by laser. The microstructure and performance of the welding joint were studied by means of nanoindentation......
J. Cent. South Univ. (2021) 28: 1170-1182 DOI: https://doi.org/10.1007/s11771-021-4688-8 Fe-Zn supersaturated solid solution prepared by mechanical alloying and laser sintering to accelerate... by laser sintering, which involved a partial melting/rapid solidification mechanism and retained the original supersaturated solid solution. Results proved that the Fe-Zn alloy became more susceptible......
Microstructures of surface modification layer on Q235 steelproduced by laser melt injection of WC LI Fu-quan(李福泉), CHEN Yan-bin(陈彦宾), LI Li-qun(李俐群) State Key Laboratory of Advanced Welding...; Abstract: WC powder was injected onto the surface of Q235 steel by laser melt injection (LMI......
produced by sharpened and flat electrodes [J]. Int J Heat Mass Transfer, 1990, 33(10): 2089-2098. [6] CARMIGNANI C, MARES R, TOSELLI G. Transient finite element analysis of deep penetration laser welding... Simulation on temperature field of TIG welding of copper without preheating LEI Yu-cheng(雷玉成), YU Wen-xia(郁雯霞), LI Cai-hui(李彩辉), CHENG Xiao-nong(程晓农) School of Materials Science and Engineering......
Microstructure and properties in dissimilar/similar weld joints between DP780 and DP980 steels processed by fiber laser weldingHongshuang Di1,Qian Sun1,Xiaonan Wang2,Jianping Li11. State Key... on fatigue life was not influenced due to the presence of welding concavity.关键词:......
bonding[4], transient liquid phase bonding[5], gas shielded arc welding[6], laser welding [7-8] have been used to weld these materials. Among the above-mentioned welding technologies, the fusion... Technology, 2003(143/144): 846-850. [12] NIU Ji-tai, ZHANG De-ku, JI Guo-juan. Effect of pulse parameters on microstructure of joint in laser beam welding for SiCp/6063 composite [J]. Trans Nonferrous......
双光束激光焊接试验布置示意图 Fig. 1 Schematic diagram of experimental setup for dual- beam welding 图2 激光双光束焊试件形状和尺寸 Fig. 2 Shape and dimension of laser double beam welding sample (Unit: mm) 图3 激光点焊试件形状和尺寸 Fig. 3 Shape and dimension of laser spot welding sample (Unit: mm) 2 结果与讨论 2.1 接头显微组织分析 钛合金具有可逆转变特性,当温度超过一定水平时,晶体结构从α密排六方结构变为β体心立方结构,TC4合金转变温度在980~1010 ℃之间,转变相......
Low-power YAG laser/arc hybrid welding of AZ-based Mg alloyHAO Xinfeng,and SONG Gang State Key Laboratory of Materials Modification,School of Materials Science and Engineering,Dalian University of Technology,Dalian 116024,China摘 要:The results of recent researches on the weldability of laser/arc hybrid welding of AZ-based Mg alloy......
process [28], drilling process [29] and turning process [30]. PAN et al [31] examined the welding process parameters by Taguchi technique and concluded that pulse shape and laser energy was an effective... K, WANG C C, HSIAO Y C, HAASO K C. Optimization of Nd: YAG laser welding onto magnesium alloy via taguchi analysis [J]. Optics and Laser Technology, 2004, 37: 33-42. DOI: https://doi.org/10.1016/j......
