Research progress and prospect of numerical simulation of deposit morphology control in solid-state cold spray additive manufacturing

Solid-state cold spray additive manufacturing (CSAM) technology has become increasing hot in research among many countries for its high deposition efficiency, fast deposition speed and low thermal effect. Since the deposition method of CSAM is quite different with that of the traditionally laser additive manufacturing , the control of the deposit morphology has become a major task in the application of the technology. Based on the current conditions, numerical simulation methods have been carried out to study the effect of cold spray on the morphology of deposition. The results show that numercial simulation is a good way to predict and control the deposit morphology. In this paper, various simulation methods were proposed to predict the depositon morphology of CSAM and the characteristic of each method were summarized. Finally, challenges at present and prospect of the simulation of CSAM deposit morphology were proposed.