Abstract: The device of selective electro-deposition rapid prototyping with electrolyte jet is found and the fundamental experiments are achieved with it. The experimental results show that the three-dimensional part of metal copper can be formed with this technology. The size precision and shape precision of the part deposited part are acceptable and the thickness of it is up to 1.2 mm. The analyses with SEM and XRD show that lots of pores are distributed on whole deposited layer symmetrically. The grain size of crystal is 10～15 nm, high break strength and high hardness of it are obtained in mechanical properties measuring.

Key words: Nanocrystalline copper, Rapid prototyping　Electro deposition