kylmämuotoilulla

Kylmämuotoilu, or cold forming, is a manufacturing process where metal is shaped at or near room temperature. This is in contrast to hot forming, which involves heating the metal to a much higher temperature. Cold forming is typically achieved through processes like rolling, drawing, bending, and extrusion.

The primary advantage of cold forming is that it improves the strength and hardness of the metal due to strain hardening. This process also results in a smoother surface finish and often tighter dimensional tolerances compared to hot forming. Because no heating is involved, it also eliminates issues related to oxidation and scaling, and it is generally more energy-efficient.

Common applications for cold forming include the production of fasteners such as screws and bolts, as well as various automotive parts, shafts, and wires. The specific method of cold forming used depends on the desired shape and the properties of the metal being worked. Materials suitable for cold forming include various steels, aluminum alloys, and copper alloys. While effective for many applications, cold forming can be limited by the ductility of the material and the complexity of the desired shape, as it requires more force than hot forming.