Kylmätyöstöteräkset

Kylmätyöstöteräkset refer to a category of steel alloys specifically designed for manufacturing tools and dies that are used in cold working processes. These processes involve shaping metal at or near room temperature, which requires tools that can withstand high stresses, abrasion, and potential chipping. Kylmätyöstöteräkset are characterized by their high hardness, excellent wear resistance, and good toughness.

The specific properties of kylmätyöstöteräkset are achieved through careful control of their chemical composition, particularly the carbon content, and through heat treatment processes. High carbon content contributes to significant hardness and wear resistance after hardening. Alloying elements such as chromium, molybdenum, tungsten, and vanadium are often added to enhance hardenability, improve wear resistance, and increase toughness. Chromium, for instance, aids in hardenability and corrosion resistance, while tungsten and molybdenum improve hot hardness and wear resistance.

Common applications for kylmätyöstöteräkset include dies for stamping, drawing, forging, and extrusion, as well as cutting tools, punches, and rolls. The selection of a specific kylmätyöstöteräs grade depends on the demands of the particular cold working application, such as the severity of wear, the impact loads involved, and the required dimensional stability. Proper heat treatment, including hardening and tempering, is crucial to achieve the desired balance of hardness and toughness for optimal tool performance and longevity.