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were performed with the single-sided polished (110) wafer of silicon. Nd:YAG laser (1.064 μm) was used in welding mode with a single pulse energy of 0.04 J, pulse width of 2 ms, output frequency of 30... Simulation and prediction in laser bending of silicon sheet WANG Xu-yue, XU Wei-xing, XU Wen-ji, HU Ya-feng, LIANG Yan-de, WANG Lian-ji Key Laboratory for Precision and Non-traditional Machining......
; 文献标志码:A 文章编号:1672-7207(2011)05-1332-06 CO2 laser welding process on ZK60 magnesium alloy XIE Li-chu1, CHEN Zhen-hua2... electron microscope (SEM). And the effect of processing parameters including laser power and welding speed on the welding quality was researched. The results show that the ZK60 magnesium alloy can......
is formed in plasma welding 1Cr18Ni9Ti, which reduced the effect of strain deformation martensite induced by laser shock processing, but the surface residual compress stress gained by laser shock...Laser Shock Processing of Metal Sheet and Welded Joints ZOU Shi-kun1,LIU Fang-jun1,ZHANG Xiao-bin1,TAN Yong-sheng1 (1.Beijing Aeronautical Manufacturing Technology Research Institute, China) 摘要......
steel should be welded by high energy density welding technologies such as plasma arc welding(PAW), laser beam welding(LBM) and electron beam welding (EBW). Compared with LBW and EBW, PAW is a process... Sensing controlled pulse key-holing condition in plasma arc welding JIA Chuan-bao(贾传宝)1, WU Chuan-song(武传松)1, ZHANG Yu-ming(张裕明)2 1. Institute for Materials Joining, Shandong......
Effect of Laser Welding on Properties of Dissimilar Joint of Al-Mg-Si and Al-Mn Aluminum AlloysC.C.Chang1,2,C.P.Chou1,S.N.Hsu2,G.Y.Hsiung2,J.R.Chen2,31. Department of Mechanical Engineering,National... of laser output (pulsed wave and continuous wave),welding speed,shield gas flow,welding bead structure,and focusing distance.The results showed that the welding defect rate of the pulsed wave type......
Trans. Nonferrous Met. Soc. China 22(2012) 23-29 Effects of activating flux on CO2 laser welding process of 6013 Al alloy QIN Guo-liang1, 2, WANG Guo-gang2, ZOU Zeng-da2 1. State Key Laboratory...; accepted 27 October 2011 Abstract: In order to increase the absorption of laser energy and improve the weld appearance in laser welding of Al alloy, 1.8 mm- 6013 Al alloy plate was welded by activating flux......
FEM SIMULATION FOR LASER FORMING PROCESSING Y.B.Chen1,S.Y.Lin2,X.Y.Wang2,L.Q.Li1 (1.State Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China;2.Harbin Research Institute of Welding, Harbin 150001, China) Abstract:Laser forming involves heating sheet metal workpiece along a certain path with a defocused laser beam directed irradiate......
coat with low melting point and vaporization temperature [1-3]. The development of laser brazing method improves welding efficiency and joint qualities, such as joint strength, porosity, weld appearance... distribution in brazing process is possible, which may improve the brazing quality and extend welding conditions[13-15]. In this study, a CO2 laser beam is formed into circular individual beam spot, dual......
boundaries into untempered and/or twinned martensite could also contribute to increased DBTTs of the steel and its welds tempered at 540℃. 关键词:modified 9Cr-1Mo steel; laser welding; impact toughness...The Ductile to Brittle Transition Behavior of the Modified 9Cr-1Mo Steel and Its Laser Welds R.K.Shiue1,C.Chen2,H.C.Wu2 (1.Department of Materials Science and Engineering, Dong Hwa University......
, 2005(10): 566-570. [7] DING Rong-hui, LI Wen-xian, WANG Ri-chu, XIAO Yu-de, MA Zheng-qing, YU Kun, LU Yan-jun. Rapid solidified heat-resistant aluminum alloy AA8009 by CO2 laser welding [J... Effect of activating flux on arc shape and arc voltage in tungsten inert gas welding LI Qing-ming(李清明), WANG Xin-hong(王新洪), ZOU Zeng-da(邹增大), WU Jun(吴 军) School of Materials Science......
