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《Ordnance Material Science and Engineering》 2005-04
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Application and prospect of laser surface build-up welding technology

WANG Xiao-fan, YAO Jian-hua, ZHANG Qun-li (YiTuo(Ningbo) C.S.I. Tractor & Automobile Co.,Ltd., Ningbo 315020, Chian;Research Center of Laser Processing Technology and Engineering, Zhejiang University of Technology, Hangzhou 310014, China)  
The technology of laser build-up welding has showed wide scope of application in industry, and the build-up welding layer possesses high properties, such as wearing-resistant property, corrosion-resistant property, oxidation resistance, thermal barrier property etc. Laser build-up welding has received more attention in the field of material surface treatment in the late 10 years, just because it can form metallurgical bonding between laser layer and matrix metal, resulting in smaller microstructure, controllable component of layer and rate of dilution, thicker overlaying strata, smaller thermal distortion, and it is easy to practise selective welding and automatic technical process. By far, the technology of laser build-up welding has achieved certain success in repairing wearing parts and strengthening key parts in industry. This paper introduces process features and industry application of laser build-up welding in details, analyses the exist problems and methods of quality control, and predicts the future of development, thus, providing references for research and popularization of industry application.
【CateGory Index】: TG455
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