Production method for press formed product
AssigneeNippon Steel Corporation
InventorsRyo URUSHIBATA, Yasuhiro ITO
Life of this patent
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AssigneeNippon Steel Corporation
InventorsRyo URUSHIBATA, Yasuhiro ITO
Estimating the term…
A production method for a press formed product includes sandwiching a blank between a die and a blank holder, and pushing the blank by a punch in a press direction. When viewed in the press direction, an edge of the die includes a curved portion, and an edge of the blank includes a curved portion. A distance between the blank edge curved portion and the edge of the die differs between one end portion and another end portion of the blank edge curved portion. The blank holder sandwiches a part of the edge of the blank between the blank holder and the die. A distance between the edge of the blank holder and the edge of the blank sandwiched between the blank holder and the die varies along the edge of the blank. This distance is greatest in the blank edge curved portion.
A production method for a press formed product, comprising:
Dependencies are inferred from the claim text.