Copper bar nail-free flat riveted structure and process method thereof

The invention provides a copper bar nail-free flat riveted structure and a process method thereof. The copper bar nail-free flat riveted structure comprises an upper copper bar and a lower copper barwhich are arranged perpendicularly; two layers of concentric stepped circular holes which pass through the upper copper bar the thickness direction of the upper copper bar are formed in the upper copper bar; one side surface of the lower copper bar is provided with circular riveting joints which are suitable for being riveted into the circular holes with smaller diameters in the stepped circular holes; and process counterbores are formed in the circular riveting joints. According to the copper bar nail-free flat riveted structure and the process method thereof of the invention, riveting can berealized with no nails needed, other connecting parts are not required, the upper surface and lower surface of the copper bar nail-free flat riveted structure are flat, the appearance of the copper bar nail-free flat riveted