METHOD FOR FABRICATING SHEET METAL PRODUCT HAVING THREE-DIMENSIONAL SHAPE, AND PRODUCT
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United States of America Patent
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Issued Date -
Sep 27, 2007
app pub date -
Feb 27, 2007
filing date -
Mar 24, 2006
priority date (Note) -
Abandoned
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Abstract
The invention provides a method for fabricating a large sheet metal product having a three-dimensional shape such as a cover of a machine tool, without performing a welding process, and a product fabricated by the same. A cover unit 1 of a machine tool is fabricated by fixing to a circumference edge portion of a cover sheet 10 edge members 110, 120, 130, 210, 220, 230, 310 and 410 via fastening members such as bolts and nuts. The cover sheet 10 and each of the edge members are formed by nesting an expansion plan based on a three-dimensional solid model data of the cover unit 1 on a sheet metal material on a laser beam machine, and subjecting the same to laser processing. At this time, various information such as bend lines and bend angles required in the post process are marked off on each component via laser processing. The components having been subjected to high-precision laser processing are subjected to necessary bending process. The components are then assembled using fastening members to fabricate a large sheet metal product having a three-dimensional shape without performing a welding process.
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