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Acta Armamentarii ›› 2015, Vol. 36 ›› Issue (11): 2157-2163.doi: 10.3969/j.issn.1000-1093.2015.11.021

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Numerical Simulation of Cu Particles Impacting on Medium Steel in Laser-assisted Cold Spraying

LUO Fang1,2,3, ZHAO Bing2,3, YAO Jian-hua2,3   

  1. (1.College of Zhijiang, Zhejiang University of Technology, Hangzhou 310024, Zhejiang, China;2Research Center of Laser Processing Technology and Engineering, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China;3Zhejiang Provincial Collaborative Innovation Center of Highend Laser, Hangzhou 310014, Zhejiang, China)
  • Received:2014-12-23 Revised:2014-12-23 Online:2016-02-02
  • Contact: LUO Fang E-mail:luofang@zjut.edu.cn

Abstract: The 3D simulation of Cu particles impacting on medium steel substrate in the laser-assisted cold spray process is performed using the finite element analysis software ANSY/LS-DYNA based on Johnson-Cook material model and bilinear isotropic hardening material model. The process parameters, such as particle impact velocity, deposition temperature, are simulated to obtain the deformation contours, crater depth and so on. The results show that Cu particles can be deposited on medium steel effectively at the velocity of 800 m/s in room temperature environment and at the velocity of 500 m/s at 850 ℃. In addition, the two material models both can be used to predict the process parameters for the laser-assisted cold spraying.

Key words: material surface and interface, cold spray, material model, simulation

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