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laser have been developed for selective laser melting. Recently, the fiber laser has been receiving attention due to its advantages of high power, high beam quality, simplicity, high electrical... with much higher power and much lower scan rate. Elevating power or lowering scan rate enhanced energy input and enhanced energy input led to higher temperatures and consequently particles around laser beam......
号:TG 456.7 文献标识码:A Microstructure and properties of joints of wrought magnesium alloy AM60 plates welded by laser beam welding QUAN Ya-jie, CHEN Zhen-hua, LI Mei... welding, and the joint strength is up to 94% of the base metal. The fracture surface is characterized by mixture fracture. Key words: wrought magnesium alloy AM60; laser beam welding; microstructure......
of welded joints shows brittle fracture character. Key words: TC11 titanium alloy; laser beam welding; microstructure; mechanical property 钛及钛合金是极其重要的轻质合金材料,具有比强度高,抗腐蚀能力强,耐高温,低温性能好,无磁性等优良的性能,在航空,航天,车辆...激池功率对应的名义焊接热输入值 Table 1 Nominal welding heat input values corresponding to laser power at TC11 titanium alloy laser beam welding 采用金相显微镜和扫描电子显微镜对焊接接头不同区域进行微观组织观察,金相试样所用侵蚀液为Kroll试剂,即3%HF+7%HNO3......
2011 Abstract: Electron beam welding was carried out between aluminum alloy and steel with Ag interlayer. Seam morphology, structure and mechanical properties of the joints were investigated...: aluminum alloy; steel; Ag interlayer; non-centered electron beam welding; joint 1 Introduction Aluminum alloys are being more and more used in light weight structures thanks to low density, high......
. The theoretical focused spot size of the laser beam is calculated to be 0.34 mm in diameter. A piece of plexiglass was exposed to the laser beam at the focal distance for a short exposure duration to confirm the calculation. The diameter of the burned region on the plexiglass was approximated to be the focused laser beam spot size. Using this method, the laser beam focused spot size is measured......
synchronized laser beam welding with the homologous filler wire. The formation, microstructure and mechanical properties of welded joints as well as the correlations of each other were investigated... and stringer fractured at the BM with ductile fracture surfaces. Key words: Ti-6Al-4V alloy; double-sided laser beam welding; T-joint; high-speed photography; microstructure; mechanical property 1......
of laser beam welded TC4/TA15 dissimilar titanium alloy joints under different welding parameters were studied. The results show that the weld fusion zone of TC4/TA15 dissimilar welded joints... occurs during the tensile tests and the fracture characteristics are typical when ductility is present in the material. Key words: laser beam welding; TC4/TA15 dissimilar joint; microstructure, high......
Si diffusion behavior during laser welding-brazing of Al alloy and Ti alloy with Al-12Si filler wire CHEN Shu-hai(陈树海), LI Li-qun(李俐群), CHEN Yan-bin(陈彦宾), LIU De-jian(刘德健) State Key...; Abstract: In laser welding-brazing of Al alloy (5A06) and Ti alloy......
Laser forming thin aluminum sheetsLI Li-qun(李俐群), CHEN Yan-bin(陈彦宾), LIN Shang-yang(林尚扬)(State Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 15001, China)Abstract:Laser forming is a flexible forming process that forms sheet metal by means of laser-induced stresses instead of by means of external force. With the rapid development of laser......
Particles migration behavior during laser keyhole welding of ZL101/TiB2 compositesHaichao CUI, Fenggui LU , Xinhua TANG and Shun YAO (Shanghai Key Laboratory of Materials Laser Processing... of pool fluid in laser welding aluminum composites. In order to investigate particle migration behavior, a numerical model was established on laser welding of ZL101-TiB2 composite. TiB2 migration......
