stamping

Stamping is a term used to describe the process of transferring a design or pattern onto a surface by pressing a stamp or die into contact with the material. The term covers artistic crafts, industrial manufacturing, and the production and use of postage stamps. Stamps can carry ink, embossing, or formed impressions, depending on the method and material.

In crafts and arts, rubber or clear polymer stamps are affixed to a handle and inked before pressing onto paper, fabric, leather, or other substrates. Techniques include layering multiple colors, masking, and heat embossing, where superfine powder melts to create a raised, glossy image.

Industrial stamping uses presses and dies to shape or cut metal into parts. Methods include blanking, piercing, and forming. Progressive dies can perform multiple operations in sequence on a single strip of material, enabling high-volume production for automotive parts, appliances, and electronics. Material selection ranges from steel and aluminum to brass, copper, and specialty alloys.

Postage stamps, a distinct use of stamping, are adhesive labels issued by postal authorities to prepay postage. The first widely used stamps appeared in the 1840s, enabling standardized postal payments and enabling philatelic collecting. Stamping as a hobby focuses on collecting, cataloging, and studying stamps from different countries and eras.

Safety and quality considerations in stamping include controlling tool wear, ensuring consistent pressure, and avoiding deformation or misalignment. Advances in stamping include computer-aided design of dies, automation, and precision stamping technology.