Working principle:
By punch and die plate, strip, pipe and profiles, such as outside force, to produce plastic deformation or separation, to obtain the required shape and size of the workpiece forming method, the workpiece is stamping parts, stamping parts by press and die for sheet, strip, pipe and profiles, such as external force, to produce plastic deformation or separation, to obtain the required shape and size of the workpiece (stamping) forming method of stamping and forging belong to plastic processing (or pressure processing), called the forging and stamping of the billet is mainly hot rolling and cold rolling steel plate and steel belt.