Sökning: "tool steels"
Visar resultat 21 - 25 av 99 avhandlingar innehållade orden tool steels.
21. The Positive Effect of Nitrogen Alloying of Tool Steels Used in Sheet Metal Forming
Sammanfattning : Sheet metal forming processes are mechanical processes, designed to make products from metal sheet without material removal. These processes are applied extensively by the manufacturing industry to produce commodities such as heat exchangers or panels for automotive applications. They are suitable for production in large volumes. LÄS MER
22. Effect of austenitising temperature and cooling rate on microstructures of hot-work tool steels
Sammanfattning : The average size of hot-work tools has gradually increased over the past years.This affects the effective temperature cycle tools experience during hardening,as large dimensions prevent uniform and rapid cooling, and thereby the resulting microstructures and properties. LÄS MER
23. The influence of tool steel microstructure on galling
Sammanfattning : In sheet metal forming (SMF) of materials such as stainless steels there is a major problem with transfer and accumulation of sheet material to the metal forming tool surface. The problem is known as galling; a sort of severe adhesive wear, which results in severe scratching of produced parts. LÄS MER
24. Tribology of hot forming tool and high strength steels
Sammanfattning : Tribological research pertaining to moving machine components operating at elevated temperatures has so far received only limited attention despite the fact that many technological applications encounter high-temperature conditions. Examples of such applications can be commonly found in the aerospace, power generation and hot metal working industries. LÄS MER
25. Secondary hardening in some low-chromium hotwork tool steels
Sammanfattning : .... LÄS MER