Metal deforming – By use of roller or roller-like tool-element – With carrier for roller-couple or tool-couple
Patent
1997-01-07
1999-03-02
Hail, lll, Joseph J.
Metal deforming
By use of roller or roller-like tool-element
With carrier for roller-couple or tool-couple
72 107, 72 118, B21B 3107, B21B 3120, B21B 3700
Patent
active
058756728
ABSTRACT:
A method and apparatus for manufacturing metallic support beams for windscreen wiper blade assemblies, which includes a supply of metallic strip feedstock in a cold condition, the feedstock being passed in a cold condition through a pair of opposed, spaced apart, cold forming rollers. A spacing between the cold forming rollers is cyclically varied during to cyclically vary a thickness reduction of the feedstock and provide a rolled strip with a cyclically varying thickness. The thickness of the rolled strip is varied in a single pass between the cold forming rollers and the feedstock is worked so that the thickness of the rolled strip varies cyclically along its length in a ratio of least 2:1. Support beams are produced from the rolled strip, each support beam having a thickness which varies along its length.
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Fehrsen Johannes Hendrik
Fourie Eugene
Nieuwoudt Mechiel Nicolaas
Butler Rodney
Hail, lll Joseph J.
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