METHOD FOR TREATING SURFACE OF 3D PRINTING METAL PRODUCTS

摘要

The present invention relates to a method to treat a surface of a metal product using an ultrasonic wave and electrolytic polishing. More specifically, the method to treat the surface of a metal product using the ultrasonic wave and electrolytic polishing comprises: (1) a step of using metal powder to manufacture a metal product by a three-dimensional printing method; (2) a step of immersing the manufactured metal product in an electrolyte; and (3) a step of simultaneously applying a voltage, a current, and an ultrasonic wave to the electrolyte to modify a surface of the metal product. The surface modification of the metal product removes the metal powder remaining on the surface of the metal product manufactured by the three-dimensional printing method, and reduces a roughness of the surface to flatten the surface of the metal product.