Method for manufacturing shaped part
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United States of America Patent
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Dec 5, 2023
Grant Date -
Jan 28, 2021
app pub date -
Mar 29, 2019
filing date -
Mar 30, 2018
priority date (Note) -
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Abstract
The present invention has as its object to provide a method for manufacturing a shaped part able to suppress the occurrence of shaping defects when manufacturing a tubular shaped part. The above object is achieved by providing a method for manufacturing a shaped part comprising a first bending process of press-forming a metal sheet to obtain a curved intermediate part curved in a longitudinal direction by a curvature α, a U-process of press-forming the curved intermediate part into an approximately U-section to obtain a first curved U-section intermediate part provided with a bottom part having the curvature α, and an O-process of press-forming the first curved U-section intermediate part to form a closed cross-section to obtain a tubular shaped part provided with a bottom part having the curvature α.
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