Several common processing procedures in metal stamping are: punching, punching the center hole, embossing, and embossing.
Punching is a stamping process that uses a die to separate part of the material or process parts from another part of the material, process (sequence) parts or waste. It is the general term for separation processes such as cutting, blanking, punching, punching, punching, slitting, chiseling, trimming, tongue cutting, cutting, and trimming.
Punching the center hole is a punching process in which a shallow concave center hole is formed on the surface of the process part, and the back material has no corresponding protrusions.
Embossing is a stamping process that forcibly squeezes out the material locally and forms shallow concave patterns, patterns, characters or symbols on the surface of the process parts. The back of the embossed surface has no protrusions corresponding to dimples.
Embossing is a metal stamping process in which a punch is used to squeeze into one side of the process part, forcing the material to flow into the opposite pit to form a protrusion.