Kylmästanssaus

Kylmästanssaus, also known as cold stamping, is a metalworking process that involves forming metal at room temperature. Unlike hot stamping, which requires heating the metal to a malleable state, cold stamping utilizes the inherent ductility of the material. This technique is typically employed for thinner gauge metals or for operations where maintaining the material's original properties is crucial.

The process involves using a die and punch to shape a metal blank. The die, a shaped cavity, and the punch, a corresponding male tool, are brought together under high pressure, forcing the metal to conform to the die's shape. Common applications for cold stamping include the production of various components for the automotive industry, such as body panels and structural parts, as well as in the manufacturing of appliances, electronics, and fasteners.

One of the primary advantages of cold stamping is its ability to produce parts with excellent dimensional accuracy and surface finish, often requiring minimal post-processing. It also avoids issues associated with material distortion or changes in microstructure that can occur during heating and cooling cycles in hot stamping. However, cold stamping requires higher forces and stronger tooling due to the increased resistance of the metal at room temperature, and it is generally limited to materials with good ductility. It can also induce work hardening in the metal, which can increase its strength but reduce its ductility.