Particles migration behavior during laser keyhole welding of ZL101/TiB2 composites

金属学报(英文版), 2012, 25(3): 190-200.

^1, , ^2, , ^3, , ^4,

1.Shanghai Key Laboratory of Materials Laser Processing and Modification, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, China

2.Shanghai Key Laboratory of Materials Laser Processing and Modification, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, China

3.Shanghai Key Laboratory of Materials Laser Processing and Modification, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, China

4.Shanghai Key Laboratory of Materials Laser Processing and Modification, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, China

基金项目: The authors would like to thank the Institute of Ecology and Environmental Materials of Shanghai Jiao Tong University for supplying the experimental materials This work was financially supported by the Shanghai Natural Science Foundation of China(11ZR1417500)

Particles migration behavior during laser keyhole welding of ZL101/TiB2 composites

Haichao CUI ^1, , Fenggui LU ^2, , Xinhua TANG ^3, , Shun YAO ^4,

1.Shanghai Key Laboratory of Materials Laser Processing and Modification, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, China

2.Shanghai Key Laboratory of Materials Laser Processing and Modification, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, China

3.Shanghai Key Laboratory of Materials Laser Processing and Modification, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, China

4.Shanghai Key Laboratory of Materials Laser Processing and Modification, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, China

Keywords： Laser welding

Particle redistribution occurred with the flow 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 coupling with fluid was realized.The volume-of-fluid (VOF) method was employed to track free fluid surfaces.The travel heat source was realized utilizing the workpiece motion in place of heat source motion,which made the heat load stable.Melting and evaporation enthalpy,recoil force,surface tension and buoyancy were considered in this model.Through the calculation it showed that the simulated weld cross section shaoe and particle distribution were in good agreement with experimental results.

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Particles migration behavior during laser keyhole welding of ZL101/TiB2 composites

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