Sökning: "Tool material"

Visar resultat 21 - 25 av 1070 avhandlingar innehållade orden Tool material.

1. 21. Multicomponent diffusional reactions in tool steels : Experiment and Theory

   Författare :Greta Lindwall; Malin Selleby; Karin Frisk; John Ågren; Carelyn Campbell; KTH; []
   Nyckelord :hot-work tool steel; precipitation hardening; DICTRA; coarsening; mobilities; CALPHAD; cobalt; PM tool stees; nitrogen; compound materials;

   Sammanfattning : Many phenomena determining the microstructure of a tool steel and consequently the properties of the material, are governed by multicomponent diffusion. The diffusion driven reactions that take place during, for example, tempering of a hot-work tool steel or when the microstructure develops during hot isostatic pressing of cold-work tool steel, are dependent on the types and amounts of alloying elements. LÄS MER

3. 22. Modelling of Forming and Welding in Alloy 718

   Författare :Lluís Pérez Caro; Mats Oldenburg; Eva-Lis Odenberger; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Forming; welding; Alloy 718; damage; GISSMO; failure; Hållfasthetslära; Solid Mechanics;

   Sammanfattning : The reduction of fuel consumption and carbon dioxide emissions are currently a key factor for the aviation industry due to major concerns about climate change and more restrictive environmental laws. One way to reduce both fuel consumption and CO2 emissions is by significantly decreasing the vehicle’s weight while increasing engine's efficiency. LÄS MER

4. 23. Adaptive Active Control of Machine-Tool Vibration in a Lathe - Analysis and Experiments

   Författare :Lars Håkansson; Industriell Produktion; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materiallära; Material technology; Metal Cutting; Lathe; Tool Vibration; Active Control; Adaptive Signal Processing; materialteknik;

   Sammanfattning : In the turning operation the relative dynamic motion between cutting tool and workpiece, or vibration, is a frequent problem, which affects the result of the machining, and in particular, the surface finish. Tool life is also influenced by vibration. LÄS MER

5. 24. Kontrakt med naturen. Om spridning och implementering av miljöledningssystem

   Författare :Ulf Ernstson; Göteborgs universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; environmental management systems; iso 14001; eco-management and audit scheme emas ; environmental certification; certificate; environmental tool; administrative steering tool; processes; material flows; communicative actions; time geography.;

   Sammanfattning : Abstract Ernstson, U. (2006) Contract with Nature: On Diffusion and Implementation of Environmental Management Systems. Publication edited by the Department of Human and Economic Geography, Göteborg University. Series B, no 109, 275 pages. LÄS MER

7. 25. Sustainable Design and Control of Automated Material Handling Systems

   Författare :Maziar Mashaei; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mixed integer leaner model.; CPN tool; Universal design framework; Sustainable production philosophy; Conceptual and detailed design phases; Automated material handling system; Pallet system; Synthesis and evaluation methods;

   Sammanfattning : An automated material handling system is a collection of electro mechanical components, electronics, and computer-based devices that act together to maintain flow of parts and materials in a modern production environment. Material flow is a significant factor in the design of manufacturing plants. LÄS MER