Sökning: "Tool steel"
Visar resultat 21 - 25 av 209 avhandlingar innehållade orden Tool steel.
21. White Layer Formation during Hard Turning of Through-Hardened Martensitic and Bainitic AISI 52100 Steel
Sammanfattning : Increased demands for flexible manufacturing lines, shorter cycle times and reduced impact on the environment drives the need for optimization of today’s manufacturing. For machining of hardened steel parts (>45 HRC), grinding has been the obvious choice for many decades. However, hard turning has often been considered as a replacement due to e. LÄS MER
22. On wear of wood-cutting tools : Tool materials, wear mechanisms and modelling
Sammanfattning : Bandsaw blades are commonly used in the sawmill industry for timber cutting. The saw teeth are gradually worn during cutting and will finally cause unacceptable surface roughness and dimensional deviations on the sawn wood product. Maintenance by re-sharpening of the saw teeth is therefore necessary after a certain time of sawing. LÄS MER
23. Fracture behaviour and related microstructures of tool steels parted-off at high rates of strain
Sammanfattning : Increasing steel prices and environmental aspects have put forward the demand to reduce material consumption in manufacturing industry and near-net-shape manufacturing techniques have thus become increasingly important. High-velocity parting-off, or adiabatic cutting, has shown to result in very low material waste as well as narrow dimensional tolerances of parted-off samples. LÄS MER
24. Microstructure and mechanical properties of a 5 wt.% Cr cold work tool steel : Influence of heat treatment procedure
Sammanfattning : The demand for Advanced High Strength Steel (AHSS) in the automotive industry is increasing day by day. It is mainly motivated by the fact that AHSS can be used as thin sheets while having high strengths. LÄS MER
25. Process integration in the steel industry : possibilities to analyse energy use and environmental impacts for an integrated steel mill
Sammanfattning : There is a growing awareness of serious problems associated with the use of energy. These problems include local and global environmental degradation associated with energy use and depletion of resources. LÄS MER