Stamping: Stamping (冲压)
A metal forming process that blanks and bends teeth or slider bodies from strip or wire using progressive dies. Stamping speed, die clearance and material hardness determine burr height, dimensional accuracy and surface quality. Sharp burrs must be removed by tumbling or polishing before plating, otherwise they scratch fabric and skin. Stamped parts are inspected for cracks, deformation and consistent tooth height before assembly.