The performance of a piezoelectric micro-pump for 3D additive manufacturing

The piezoelectric micro-pump is one kind of electronic device which can achieve supplying fluid on demand, and the total volume of fluid per time is at μL level. For fluid, such as fluid base on Cyanoacrylate, with low dynamic viscosity and can be solidified easily, the micro-pump is effectively to be used for 3D additive manufacturing. In this paper, we show a valve less piezoelectric micro-pump with the advantages of simple structure and stable performance. And we analyze the performance of the piezoelectric micro-pump which can be used for 3D additive manufacturing. A fluid solid coupling method is proposed for simulating the working progress of the piezoelectric micro-pump. The fluid transmission performance of the piezoelectric is mainly analyzed, such as the mass flow, flow rate of the outlet and the internal pressure distribution. The working principle of the piezoelectric micro-pump is discussed as well. (paper)