Copper conductive contact leaf spring shrapnel is a kind of battery sheet. The battery spring is an important part of the battery and is made of copper, iron, stainless steel and other materials. Electroplating CT, silver, nickel. When the battery shrapnel installed on the conductive film is pressed, the center point of the shrapnel contacts the PCB board to form a loop, and current flows through. It has the characteristics of strong continuity and good hand feeling. Battery shrapnel production process: battery shrapnel production is a special process of processing materials (metal or non-metal) into parts (or semi-finished products) through cold stamping of stamping dies. Stamping is a pressure processing method that uses a die installed on a press to apply pressure to a material at room temperature to separate or plastically deform it to obtain the required parts.