METHOD FOR PRODUCING METAL SHEET WITH RAISED LINES, METAL SHEET WITH RAISED LINES, AND STRUCTURAL COMPONENT
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United States of America Patent
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app pub date -
Oct 7, 2015
filing date -
Oct 9, 2014
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Abstract
A method for producing a metal sheet with raised lines uses a rolling mill including roll stands. In a preparing step, a grooved roll is prepared, the grooved roll including grooves. In a choosing step, a stand at least one stage before the last stand is chosen. In an incorporating step, the grooved roll is incorporated in as an upper roil of the chosen, specified stand. In a forming step, a workpiece is formed into a metal sheet with raised lines formed corresponding to the respective grooves. In the forming step, a maximum rolling reduction achieved by rolls of the specified stand is set to a provisional value that is lower than a required value. After the leading edge of the workpiece reaches the stand next to the specified stand, the maximum rolling reduction of the specified stand is changed to the required value.
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