kylmävalssattuina

Kylmävalssattuina refers to a metal product that has undergone a cold rolling process. Cold rolling is a metalworking process that involves passing metal through rollers at or near room temperature. This process is typically performed after hot rolling, which shapes the metal at high temperatures. Cold rolling refines the grain structure of the metal, increasing its strength, hardness, and surface finish. It also allows for tighter dimensional tolerances compared to hot-rolled products. The term "kylmävalssattuina" is the Finnish plural form of "kylmävalssattu," meaning cold-rolled. Therefore, "kylmävalssattuina" would translate to "cold-rolled" when referring to multiple items or a general state of being cold-rolled. This method is commonly applied to steel, aluminum, and copper to produce sheets, strips, and bars with improved mechanical properties and a smoother surface. The cold working during this process introduces strain hardening, making the material stronger but less ductile. Subsequent annealing can be performed to reduce hardness and restore ductility if needed.