Method for partial cold deformation of steel with homogeneous thickness
AssigneeOutokumpu Oyj
InventorsStefan LINDNER, Claire HEIDECKER
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Abstract
The invention relates to a method for partial hardening of a steel sheet by cold deformation, where the partial hardening of a steel is done by a cold deformation with a multi-step rolling and annealing process and in order to have a steel sheet with a homogeneous thickness steel sheet is used with at least two areas having different values in mechanical and/or physical properties in longitudinal direction of the material.
Claims14
Method for partial hardening of a steel by cold deformation characterized in that a multi-step rolling and annealing process in order to have a steel sheet with a homogeneous thickness is used with at least two areas having different values in mechanical and/or physical properties in longitudinal direction of the material.
Dependencies are inferred from the claim text.