LASER CUTTING METHOD, LASER CUTTING FACILITY, AND COLD ROLLING METHOD FOR STEEL STRIP, AND METHOD OF MANUFACTURING COLD ROLLED STEEL STRIP
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United States of America Patent
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Issued Date -
Sep 26, 2024
app pub date -
Oct 26, 2021
filing date -
Feb 15, 2021
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Abstract
A laser cutting method for a steel strip, includes cutting an end in a width direction of the steel strip including a joint obtained by joining a rear end of a preceding steel strip and a front end of a following steel strip by using a laser beam, wherein the steel strip is cut such that an interval between pieces of dross having an aspect ratio of 1.0 or more is set to 1.0 mm or more and an interval between dross having an aspect ratio of 1.0 or more and dross having an aspect ratio of less than 1.0 is set to 1.0 mm or more in the end in the width direction after cutting.
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