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Effects of laser beam welding parameters on mechanical properties and microstructure of AZ31B magnesium alloy G. PADMANABAN, V. BALASUBRAMANIAN Center for Materials Joining & Research, Department of Manufacturing Engineering, Annamalai University, Annamalainagar 608 002, Tamil Nadu, India Received 18 October 2010; accepted 31 December 2010 Abstract: The effects of laser beam welding......
a nanoscope atomic microscope. The bonding strength of the laser cladded coating is remarkably improved respectively compared with conventional hot-sprayed coating and spray welding. The nanometer effect...Research on Laser Cladded Nickel Based Nanometer Tungsten Carbide Composite Coating DAI Jian-qiang1,ZOU Chang-gu1,YAN Min-jie1,XI Wen-long1,ZHANG Guang-jun1,GE Da-fang1,WANG Hui-Ping1 (1.Shanghai......
steel and 2 mm thickness of Al were performed by the new method that is hybrid laser welding system. After aluminum and steel were welded by laser hybrid welding process, the micro-structure investment and the micro-hardness test were carried out. Hybrid laser welding promises a bright future in joining technology of dissimilar materials for automotive components. Key words:multi-material automotive......
Trans. Nonferrous Met. Soc. China 22(2012) 1701-1710 Determination of energy coupling to material in laser welding by a novel "sandwich" method ZHANG Yi, SHI Ru-kun, LI Li-jun State Key Laboratory... characteristics, the location of the focal plane plays a more important role in the laser energy absorption by the front wall than by the rear wall. Key words: laser welding; mathematical energy coupling......
Numerical simulation of thermal behavior during laser metal deposition shaping LONG Ri-sheng(龙日升)1, 2, LIU Wei-jun(刘伟军)1, XING Fei(邢 飞)1, 2, WANG Hua-bing(王华兵)1, 2 1. Advanced Manufacturing...; Abstract: Based on the element life and death theory of finite element analysis(FEA), a three-dimensional multi-track and multi-layer model for laser metal deposition shaping(LMDS) was developed......
laser melting [J]. Rapid Prototyping Journal, 2008, 14(1): 15-22. [7] Quintino L, costa a, miranda r, yapp d, kumar v, kong c j. Welding with high power fiber lasers-A preliminary study [J]. Mater... Selective laser melting of Fe-Ni-Cr layer on AISI H13 tool steel Byeong-Don JOO, Jeong-Hwan JANG, Jae-Ho LEE, Young-Myung SON, Young-Hoon MOON School of Mechanical Engineering, Pusan National......
: 546-549. [8] SHIBATA K. Practical introduction of laser transformation hardening [J]. Journal of the Japan Welding Society, 1995, 64(3): 10-13. [9] MARUO H, MIYAMOTO I, ISHIDE T, ARATA Y. Investigation of laser hardening-Analysis of hardening condition in carbon steel [J]. Journal of the Japan Welding Society, 1981, 50(2): 82-88. [10] XU Z Y, REED C B, LEONG K H, HUNTER B V. Pulsed laser surface......
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were prepared for laser welding. The effects of parameters such as welding conditions and Al coating conditions were investigated. Al content mixed in the weld after laser welding was evaluated.... The intermetallic compounds cause the decreased strength of the weld. Key words: Al coating; laser welding; Al coated steel sheet; mechanical properties; intermetallic compound ......
on the microstructure and hot crack creation in the pulsed laser welding of AA 6061 was investigated by an optical microscope and field emission electron microscopy. Etching was carried out in the gas phase using...Microstructural analyses of aluminum–magnesium–silicon alloys welded by pulsed Nd: YAG laser weldingHossain Ebrahimzadeh,Hassan Farhangi,Seyed Ali Asghar Akbari Mousavi,Arman GhahramaniSchool......
