Investigating the cold spraying process with the material point method
- 249 Downloads
High-velocity impacts of micro copper particles on the copper substrate in the cold spraying process are simulated and investigated with the material point method (MPM). Both the single-particle and the multiple-particle models are built and simulated. The large deformation and fracture phenomena induced by the impact can be well simulated with the MPM owing to its meshfree feature. The final configurations of the sprayed particle and the substrate agree well with the experimental results reported in the literature and the results of other numerical methods. It is observed that the interlocking between the particles and the substrate may be an important contributor to the bonding mechanism. Influences of the impact velocities and impact angles are investigated numerically in detail.
KeywordsCold spray High-velocity impact Metal jetting Mechanical interlocking Meshfree particle methods Material point method
Supported by National Natural Science Foundation of China (Grant Nos. 11772171 and 11472153).
- Aldwell, B., Kelly, E., Wall, R., Amaldi, A., O’Donnell, G.E., Lupoi, R.: Machinability of Al 6061 deposited with cold spray additive manufacturing. J. Therm. Spray Technol. 26(3), 1–12 (2017)Google Scholar
- Gong, W., Liu, Y., Zhang, X., Ma, H.: Numerical investigation on dynamical response of aluminum foam subject to hypervelocity impact with material point method. Comput. Model. Eng. Sci. 83(5), 527–545 (2012)Google Scholar
- Ma, Z.T., Zhang, X., Huang, P.: An object-oriented mpm framework for simulation of large deformation and contact of numerous grains. Comput. Model. Eng. Sci. 55(1), 61–87 (2010)Google Scholar
- Wu, X.K., Zhou, X.L., Cui, H., Zhang, J.S.: Morphology prediction of cold-sprayed Cu and Al coatings through multi-particles deposition simulation. J. Univ. Sci. Technol. Beijing 34(12), 1391–1399 (2012)Google Scholar
- Yin, S., Wang, X.F., Li, Y.: High-velocity impact process between particle and substrate in cold spraying. Explos. Shock Waves 30(5), 546–550 (2010)Google Scholar
- Zhang, X., Liu, Y.: Meshless Methods. Tsinghua University Press & Springer, Beijing (2004)Google Scholar
- Zhang, X., Chen, Z., Liu, Y.: The Material Point Method: A Continuum-Based Particle Method for Extreme Loading Cases. Academic Press, Beijing (2016)Google Scholar