Search for dissertations about: "steel rolling"
Showing result 1 - 5 of 76 swedish dissertations containing the words steel rolling.
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1. Evolution of artificial defects during shape rolling
Abstract : Very often defects are present in rolled products. For wire rods, defects are very deleterious since the wire rods are generally used directly in various applications. For this reason, the market nowadays requires wire rods to be completely defect-free. Any wire with defects must be rejected as scrap which is very costly for the production mill. READ MORE
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2. Modeling the behavior of inclusions in plastic deformation of steels
Abstract : 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. READ MORE
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3. Closed-die forging and slab hot rolling with focus on material yield : some industrial problems analysed by FEM
Abstract : The thesis is focussed on improving the material yield in closed-die forging and rolling. The former is restricted to the manufacturing of heavy crown wheels and front axle beams and the latter to the hot rolling of steel slabs. To enhance the yield the commercial FE-codes Form2D and Dyna3D are used. READ MORE
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4. Characterisation and pickling behaviour of oxides formed during production annealing of stainless steel
Abstract : .... READ MORE
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5. Numerical simulation of shape rolling
Abstract : In the first part of this thesis, the FE program MSC.Marc is applied for coupled thermomechanical simulations of wire-rod rolling. In order to predict material behaviour of an AISI 302 stainless steel at high strain rates generated during wire-rod rolling, a material model based on dislocation density is applied. READ MORE