Tööriistaterasit

Tööriistaterasit refers to steel alloys specifically designed for the manufacturing of tools. These steels possess a combination of properties that make them suitable for applications requiring hardness, wear resistance, toughness, and the ability to maintain a sharp edge under stress. The specific composition of tööriistaterasit varies depending on the intended use of the tool.

Key alloying elements commonly found in tööriistaterasit include carbon, chromium, tungsten, molybdenum, vanadium, and cobalt. Carbon content is crucial for achieving hardness through heat treatment. Other elements are added to enhance specific properties. For instance, tungsten and molybdenum improve red hardness, allowing tools to retain their hardness at elevated temperatures during cutting operations. Vanadium contributes to wear resistance and grain refinement. Chromium enhances hardenability and corrosion resistance.

Tööriistaterasit are typically categorized into several groups based on their properties and intended applications. Common categories include cold-work steels, high-speed steels (HSS), shock-resisting steels, and plastic mold steels. Cold-work steels are used for tools that operate at or near room temperature, such as blanking dies, stamping dies, and shear blades. High-speed steels are designed for machining operations where high cutting speeds generate significant heat. Shock-resisting steels are engineered for tools that experience impact, like chisels and hammers. Plastic mold steels are used for molds in plastic injection molding.

The performance of tööriistaterasit is heavily dependent on proper heat treatment, which involves processes like hardening, tempering, and sometimes annealing. These treatments are critical for achieving the desired microstructure and mechanical properties.