Metal stamping (also called stamping) is a process in w […]
Metal stamping (also called stamping) is a process in which flat metal is placed in a stamping die in the form of a blank or coil for stamping. The surface of the stamping die usually needs heat treatment to increase its hardness. The stamping process includes various sheet metal stamping forming, such as stamping, punching, embossing, bending, flanging and embossing using a punch or hydraulic press. This can be a single process operation, where each process of the punching machine produces the desired shape on the sheet, or it can be automated stamping with a continuous metal mold. The stamping process is usually performed on a metal plate, but it can also be used for other materials, such as polystyrene and other plastic sheets. The stamping progressive die is usually made of steel coils, which are used to feed the coils into the straightening machine to level the coils, and then into the feeder, which sends the material to the press and performs the stamping process through the metal stamping die. According to the complexity of the parts, the stamping process in the stamping die and the number of stamping die stations can be determined.
The metal stamping process generates friction, which requires the use of lubricants to protect the surface of the workpiece and stamping die from scratches or wear. The lubricant also protects metal plates and finished stamped parts from the same surface wear and promotes the flow of elastic materials to prevent cracks, tears or wrinkles. There are a variety of lubricants that can be used for this task. They include vegetable and mineral oil based, animal fat or lard, graphite based, soap and acrylic based dry films. The latest technology in this industry is polymer-based synthetic lubricants, also known as oil-free lubricants or non-oil lubricants. The term "water-based" lubricants refers to a larger category that also includes more traditional oil and fat-based compounds.