Sökning: "rolling"
Visar resultat 16 - 20 av 379 avhandlingar innehållade ordet rolling.
16. On the influence of surface roughness on rolling contact forces
Sammanfattning : Road vehicle tyres, railway wheels and ball bearings all generate rolling contact forces which are transferred within a finite area of contact between the rolling element and the substrate. Either it is visible or not for the human eye, a certain degree of roughness is always present on the contacting surfaces and it influences the generation of both vertical and lateral contactforces. LÄS MER
17. Computational modeling of hot rolling
Sammanfattning : This thesis consists of six papers on finite element simulations of the hot rolling of plates. Different friction and material models have been evaluated. The work includes both numerical simulation and experimental verification. LÄS MER
18. The interdependence of plastic behaviour and final properties of steel wire, analysed by the finite element method
Sammanfattning : The finite element method (FEM) has been used in order to study the interdependence of plastic behaviour and final properties in steel wire. Three processes metal forming have been studied: billet forging, wire rod rolling, and cold drawing. LÄS MER
19. Modeling the behavior of inclusions in plastic deformation of steels
Sammanfattning : This doctoral thesis presents a modeling method fordemonstrating the behavior of inclusions and their surroundingmatrix during plastic deformation of steels.Inclusions are inescapable components of all steels. LÄS MER
20. Some aspects on lubrication and roll wear in rolling mills
Sammanfattning : The thesis is focused on lubricants and roll wear in striprolling.Regarding lubricants, the possibility of introducing newones, which are less detrimental towards environment, isstudied in laboratory scale. This is done for cold rolling,both of an Al- alloy and a low carbon steel. LÄS MER