Patent ID: 6221185
Filing Date: 2001-04-24
Classification: C21D,C22F,Y02P

Abstract:
A method for manufacturing components via critical formation of a light metal strip, comprising the steps of:forming the strip by rolling slabs out to form multiple width coils, cold-slitting the coils to a particular width, and coiling the slit strip;cutting the strip by uncoiling the slit strip, straightening the slit strip, and cross-cutting to individual strips of certain lengths;annealing the strip for improving the plasticity of the strip by heating only the region of the longitudinal edges of the strip to a depth of the strip width within the range including 1 mm to 10 mm such that a temperature-time range for soft-annealing is passed through, the temperature being greater than 150 degrees C. for a time period within the range including 0.1 to 10 seconds; andforming the component from the strip including a substep of performing a critical cold forming of the strip.