Press forming method
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United States of America Patent
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Jul 9, 2024
Grant Date -
Jun 20, 2024
app pub date -
Feb 14, 2022
filing date -
Feb 14, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
A press forming method for a press formed part includes: placing a pre-unbending press formed part on a punch including a top forming surface portion configured to form a top portion of the press formed part, and side-wall forming surface portions configured to form side wall portions, each of the side-wall forming surface portions including a punch side first sloped surface portion, and a punch side second sloped surface portion; relatively moving a die toward the punch, the die including flange unbending portions; and unbending flange portions by the flange unbending portions while punch side ridge line portions are brought into contact with inner surface sides of the side wall portions to form the side wall portions of the press formed part.
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