Hot-pressing die and method for manufacturing the same
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United States of America Patent
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Sep 27, 2016
Grant Date -
Mar 13, 2014
app pub date -
May 16, 2011
filing date -
May 16, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A hot-pressing die and a method for manufacturing the hot-pressing die are disclosed. The die which presses and cools a heated workpiece at the same time to form a product with a hat-shape includes a lower die and an upper die. The lower die has a protrusion which protrudes from the forming surface thereof, and the upper die has a recess corresponding to the protrusion. The lower die is modified into a modified lower die by forming, on the forming surface of the protruding end of the protrusion, a buildup part with a convex shape to gradually change in position in the protruding direction of the protrusion toward the middle thereof.
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